Fixup smtp blocks WinCE
enabling the smtp fixup feature blocks sending mails to WinCE. Tests with a Windows 95 client and a Palm tree worked well.
Examining the packages with a show to sniff what follows for Windows CE:
S: MAIL FROM:<>
R: 250
S: MAIL FROM:
Here the PIX continues to transfer packets. Clients of Win95 and Palm begin by: S: MAIL FROM:
As in RFC - 821 page 15/16 described a "MAIL FROM:"with an empty argument is managed as an undeliverable message.» As shown in example 7, it should be: S: MAIL FROM:<> R: 250 ok S: RCPT TO:<>[email protected] / * /> Is it okay to interpret this example in order to be the only way to be in conformity with the RFC starting by "MAIL FROM:<>'.» Does this mean that the way that the acts of WinCE-client is not RFC-821 are in line and is correctly filtered by the PIX? All the instructions would be appreciated. Thank you Alexander Fixup SMTP in the PIX keep track of which state that the e-mail message is in (command mode initial response mode, data mode, etc.), so if things are not in the right order, it will block. Page 27 of RFC821 details the syntax of command and States the following: ------------------------------------------------------------------ MAIL, SEND, SOML, or SAML commands begin a mail transaction. Once started a mail transaction consists one of the transaction from one or more RCPT commands, commands, and a DATA command, in that order. A mail transaction may be aborted by the RSET command. There may be be zero or more transactions in a session. ------------------------------------------------------------------ It shows that you can have that one command MAIL from mail transaction, so if WinCE indeed sends two then it violates the RFC. Tags: Cisco Security Mapping and Tempo changes broke... Hey everyone here's another question I have... I beat mapping to a song, which changes the tempo in some parts of the song. Can I have the tracking Tempo / Beat mapping all moved or deleted regions or sections. Example: I want to shorten a song, so I try to use splits/cuts that I made in the regions of clear parts and then move elsewhere in the empty space to shorten the song. I hope that I myself explained correctly. Any help would be appreciated. OK I thought about it. Here are the Directions in case someone needs to know how to do this. Important! -First save your click on follow on a midi track, by going into the environment under "Click & Ports" window and the 'Midi click' wiring for "admission tickets" keyboard. Make sure that you UN-cable after you save your Midi click. I got my Tempo of the Beat song mapped to an Audio file and all other files have been created with this fluctuating tempo. In order to reduce the regions and place them elsewhere to shorten my song, so I need to do the following... 1. Select all regions 2. right click and select SMTP BLOCKING all tracks/regions 3. see her beat mapping 4. click in the header area of mapping beat (not in the field of vertical bars, but on the left area where says Beat Mapping. This selects all beat them Mapping 5. press the button Delete to remove all beat them Mapping (this will change in turn your temp at a tempo) 6. again select all regions 7 right-click and deselect SMTP BLOCKING all tracks/regions Now all regions Midi and Audio are always synchronized, but you can move without them get out of sync. Site to site VPN - need help to set up several tunnels I currently have tunnels VPN site-to-site of two remote sites with 1720s to connect to an ASA5510 on my site TOWN_HALL. (see attached diagram) It works well, but I want to add connectivity between the 1720-A LAN (172.20.3.0/24) and LAN 1720 - B (172.22.3.0/24). What is the best way to do it? The years 1720 can be configured with direct VPN L2L tunnels or that will affect the existing tunnels is the ASA5510? If so, I'm guessing that each 1720 will have to go through the ASA first. Thank you. Configs below: ASA5510 ASA Version 7.2 (2) ! names of name 172.18.3.19 Postal Mail Server description name 172.18.3.33 description Helpdesk Server helpdesk DNS-guard ! interface Ethernet0/0 Description link Comcast nameif ComCast_Out security-level 0 IP 29.92.14.73 255.255.255.248 ! interface Ethernet0/1 nameif inside security-level 100 address 192.168.10.2 255.255.255.252 ! interface Ethernet0/2 security-level 0 ! interface Ethernet0/3 Shutdown No nameif no level of security no ip address ! interface Management0/0 nameif management security-level 100 IP 10.10.10.1 255.255.255.0 management only ! boot system Disk0: / asa722 - k8.bin boot system Disk0: / asa706 - k8.bin passive FTP mode clock timezone IS - 5 clock to summer time EDT recurring list of allowed incoming access extended ip any host 29.92.14.74 list of extended all inbound icmp permitted access all inaccessible list of inbound icmp permitted access extended throughout entire echo response list of allowed inbound tcp extended access any host 29.92.14.73 eq 3000 list of allowed inbound tcp extended access any newspaper SMTP host 29.92.14.73 eq list of allowed inbound tcp extended access any host 29.92.14.73 eq www list of allowed inbound tcp extended access any host 29.92.14.73 eq 3389 list of allowed inbound tcp extended access any host 29.92.14.73 eq pptp list of allowed inbound tcp extended access any host 116.204.226.42 eq 3000 list of allowed inbound tcp extended access any host 116.204.226.42 eq smtp list of allowed inbound tcp extended access any host 116.204.226.42 eq www list of allowed inbound tcp extended access any host 116.204.226.42 eq 3389 list of allowed inbound tcp extended access any host 116.204.226.42 eq pptp list of inbound note FTP Server access list of allowed inbound tcp extended access any host 29.92.14.73 eq ftp acl_out list extended access permit tcp host 29.92.14.73 any eq smtp acl_out list extended access permit tcp host 192.168.1.4 any eq smtp tcp extended access list acl_out deny any any eq smtp access ip allowed any one extended list acl_out 121 extended access-list permit ip 192.168.10.0 255.255.255.0 192.168.20.0 255.255.255.0 IP 172.18.3.0 allow Access-list extended sheep 255.255.255.0 172.22.3.0 255.255.255.0 IP 172.18.3.0 allow Access-list extended sheep 255.255.255.0 172.20.3.0 255.255.255.0 access-list extended sheep allowed ip 192.168.1.0 255.255.255.0 172.22.3.0 255.255.255.0 access-list sheep extended ip 172.30.1.0 allow 255.255.255.0 172.31.255.0 255.255.255.0 access-list sheep extended ip 192.168.10.0 allow 255.255.255.252 172.31.255.0 255.255.255.0 IP 172.17.1.0 allow Access-list extended sheep 255.255.255.0 172.31.255.0 255.255.255.0 172.18.0.0 IP Access-list extended sheep 255.255.0.0 allow 172.31.255.0 255.255.255.0 IP 172.31.3.0 allow Access-list extended sheep 255.255.255.0 172.31.255.0 255.255.255.0 access-list sheep extended ip 192.168.0.0 allow 255.255.0.0 172.31.255.0 255.255.255.0 backup_access_out of access allowed any ip an extended list outside_access_out of access allowed any ip an extended list Note to access list outside_access_out Barracuda outside_access_out list extended access permit tcp host 172.18.3.8 any eq smtp inactive Comment from outside_access_out-access SMTP Block list outside_access_out tcp extended access list deny any any eq smtp inactive
Note to access list schools SMTP inside_access_in inside_access_in list extended access permit tcp host postal eq smtp no matter what eq smtp inside_access_in list extended access permit tcp host 172.18.3.8 any eq smtp inside_access_in list extended access permit tcp host 172.18.3.30 any eq smtp inside_access_in tcp extended access list deny any any eq smtp inside_access_in of access allowed any ip an extended list Access extensive list ip 172.18.3.0 ComCast_Out_20_cryptomap allow 255.255.255.0 172.22.3.0 255.255.255.0
ComCast_Out_20_cryptomap to access ip 192.168.1.0 scope list allow 255.255.255.0 172.22.3.0 255.255.255.0 Access extensive list ip 172.18.3.0 ComCast_Out_25_cryptomap allow 255.255.255.0 172.20.3.0 255.255.255.0 vpn_access list standard access allowed 192.168.10.0 255.255.255.252 standard access list vpn_access allow 172.17.1.0 255.255.255.0 standard access list vpn_access allow 172.18.0.0 255.255.0.0 standard access list vpn_access allow 172.31.3.0 255.255.255.0 vpn_access list standard access allowed 172.30.1.0 255.255.255.0 vpn_access list standard access allowed 192.168.0.0 255.255.0.0 pager lines 24 Enable logging emergency logging monitor logging warnings put in buffered memory asdm of logging of information MTU 1500 ComCast_Out Within 1500 MTU MTU 1500 NOT_IN_USE management of MTU 1500 IP local pool vpnpool 192.168.20.2 - 192.168.20.254 172.31.255.1 mask - local 172.31.255.250 pool POOL VPN IP 255.255.255.0 ICMP unreachable rate-limit 1 burst-size 1 ASDM image disk0: / asdm - 522.bin don't allow no asdm history ARP timeout 14400 NAT-control Global interface (ComCast_Out) 1 Global (NOT_IN_USE) 1 interface NAT (inside) 0 access-list sheep NAT (inside) 1 192.0.0.0 255.0.0.0 NAT (inside) 1 0.0.0.0 0.0.0.0 TCP static (inside ComCast_Out) interface 3000 172.18.3.22 3000 netmask 255.255.255.255 TCP static (inside ComCast_Out) interface smtp 172.18.3.8 smtp netmask 255.255.255.255 TCP static (inside ComCast_Out) interface www 172.18.3.30 www netmask 255.255.255.255 TCP static (inside ComCast_Out) interface 3389 172.18.3.22 3389 netmask 255.255.255.255 TCP static (inside ComCast_Out) interface 172.18.3.22 pptp pptp netmask 255.255.255.255 TCP static (inside NOT_IN_USE) interface 3000 172.18.3.22 3000 netmask 255.255.255.255 TCP static (inside NOT_IN_USE) interface smtp 172.18.3.8 smtp netmask 255.255.255.255 TCP static (inside NOT_IN_USE) interface www 172.18.3.30 www netmask 255.255.255.255 TCP static (inside NOT_IN_USE) interface 3389 172.18.3.23 3389 netmask 255.255.255.255 TCP static (inside NOT_IN_USE) interface 172.18.3.22 pptp pptp netmask 255.255.255.255 TCP static (inside ComCast_Out) interface 3101 172.18.3.8 3101 netmask 255.255.255.255 TCP static (inside ComCast_Out) ftp ftp netmask 255.255.255.255 helpdesk interface static TCP (inside ComCast_Out) interface ftp - data helpdesk ftp - data netmask 255.255.255.255 static (inside, ComCast_Out) 29.92.14.74 172.18.3.16 netmask 255.255.255.255 Access-group entering interface ComCast_Out Access-group interface ComCast_Out outside_access_out inside_access_in access to the interface inside group Access-group entering interface NOT_IN_USE Access-group interface NOT_IN_USE backup_access_out Route 0.0.0.0 ComCast_Out 0.0.0.0 29.92.14.78 1 track 1 Route inside 192.168.0.0 255.255.0.0 192.168.10.1 1 Route inside 172.17.1.0 255.255.255.0 192.168.10.1 1 Route inside 172.18.0.0 255.255.0.0 192.168.10.1 1 Route inside 172.31.3.0 255.255.255.0 192.168.10.1 1 Route inside 172.30.1.0 255.255.255.0 192.168.10.1 1 Timeout xlate 03:00 Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02 Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00 Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00 Timeout, uauth 0:05:00 absolute internal group vpnclient strategy vpnclient group policy attributes Protocol-tunnel-VPN IPSec
Split-tunnel-policy tunnelspecified value of Split-tunnel-network-list vpn_access internal remote group strategy Group remote attributes policy Split-tunnel-policy tunnelspecified Split-tunnel-network-list value 121 Enable http server http 172.0.0.0 255.0.0.0 inside http 192.0.0.0 255.0.0.0 inside http 10.10.10.0 255.255.255.0 management No snmp server location No snmp Server contact Server enable SNMP traps snmp authentication linkup, linkdown cold start monitor SLA 123 interface type echo protocol ipIcmpEcho 168.87.71.226 ComCast_Out NUM-package of 3 frequency 10 Annex ALS life monitor 123 to always start-time now Crypto ipsec transform-set esp-3des esp-md5-hmac 3des Crypto ipsec transform-set esp - esp-sha-hmac SHA3DES Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac 3DES encryption dynamic-map dynmap 10 transform-set Crypto-map dynamic outside_dyn_map 10 the value transform-set ESP-3DES-SHA address for correspondence card crypto vpnremote 20 ComCast_Out_20_cryptomap
peer set card crypto vpnremote 20 202.13.116.209 vpnremote card crypto 20 the transform-set ESP-DES-MD5 value address for correspondence card crypto vpnremote 25 ComCast_Out_25_cryptomap peer set card crypto vpnremote 25 207.147.31.97 card crypto vpnremote 25 game of transformation-ESP-DES-MD5 vpnremote 30 card crypto ipsec-isakmp dynamic dynmap map vpnremote 65535-isakmp ipsec crypto dynamic outside_dyn_map vpnremote ComCast_Out crypto map interface card crypto VN1530600A 663 matches the address ACL663 card crypto VN1530600A 663 set pfs card crypto VN1530600A 663 set peer 29.92.14.73 crypto VN1530600A 663 the transform-set SHA3DES value card card crypto VN1530600A 663 defined security-association life seconds 1800 crypto isakmp identity address ISAKMP crypto enable ComCast_Out crypto ISAKMP policy 10 preshared authentication 3des encryption md5 hash Group 2 life 86400 crypto ISAKMP policy 20 preshared authentication 3des encryption sha hash Group 2 life 86400 crypto ISAKMP policy 30 preshared authentication the Encryption md5 hash Group 2 life 86400 Crypto isakmp nat-traversal 20 ! track 1 rtr 123 accessibility tunnel-group type remote ipsec-ra tunnel-group remote General attributes address vpnpool pool Group Policy - by default-remote control tunnel-group remote ipsec-attributes pre-shared-key *. tunnel-group 29.92.14.73 type ipsec-l2l IPSec-attributes tunnel-group 29.92.14.73 pre-shared-key *. tunnel-group 202.13.116.209 type ipsec-l2l IPSec-attributes tunnel-group 202.13.116.209 pre-shared-key *. tunnel-group 207.147.31.97 type ipsec-l2l IPSec-attributes tunnel-group 207.147.31.97 pre-shared-key *. Telnet 192.168.0.0 255.255.0.0 inside Telnet 172.0.0.0 255.0.0.0 inside Telnet timeout 120 SSH timeout 5 Console timeout 0 management-access inside management of 10.10.10.11 - dhcpd addresses 10.10.10.20 ! ! class-map inspection_default match default-inspection-traffic ! ! Policy-map global_policy class inspection_default inspect the pptp ! global service-policy global_policy context of prompt hostname Cryptochecksum:82155434d3cfa69cd7217f20aaacabb7 : end 1720-A version 12.2 horodateurs service debug datetime Services log timestamps datetime encryption password service ! 1720-A host name ! logging buffered debugging 4096 ! iomem 20 memory size clock timezone IS - 5 clock to summer time EDT recurring 2 Sun Mar 2:00 1 Sun Nov 02:00 IP subnet zero ! ! no ip domain-lookup name of the IP-server 172.18.3.24 DHCP excluded-address IP 172.20.3.1 172.20.3.20 ! IP dhcp pool dhcppool network 172.20.3.0 255.255.255.0 router by default - 172.20.3.1 DNS-server 172.18.3.24 172.18.3.26 !
audit of IP notify Journal Max-events of po verification IP 100 property intellectual ssh timeout of 120 property intellectual ssh authentication-3 retries ! crypto ISAKMP policy 10 md5 hash preshared authentication Group 2 address of Cisco key crypto isakmp 29.92.14.73 ! ! Crypto ipsec transform-set esp - esp-md5-hmac TOWN_HALL Crypto ipsec transform-set esp - esp-md5-hmac DES-MD5 Dimensions of tunnel mib crypto ipsec flowmib history 200 MIB crypto ipsec flowmib size of 200 historical failure ! map VPNmap 10 ipsec-isakmp crypto defined by peer 29.92.14.73 game of transformation-TOWN_HALL match address TOWN_HALL ! ! ! ! interface Ethernet0 IP 207.147.31.97 255.255.255.252 IP-group access to the PERIMETER of NAT outside IP Half duplex card crypto VPNmap ! interface FastEthernet0 LAN description IP 172.20.3.1 255.255.255.0 IP nat inside automatic speed ! interface Serial0 no ip address Shutdown ! IP nat inside source list NAT_ADDRESSES interface Ethernet0 overload IP classless IP route 0.0.0.0 0.0.0.0 207.147.31.98 no ip address of the http server enable IP pim Bennett ! ! NAT_ADDRESSES extended IP access list deny ip 172.20.3.0 0.0.0.255 172.18.3.0 0.0.0.255 IP 172.20.3.0 allow 0.0.0.255 any PERIMETER extended IP access list permit udp host 29.92.14.73 host 207.147.31.97 eq isakmp esp permits 29.92.14.73 host 207.147.31.97 IP 172.18.3.0 allow 0.0.0.255 172.20.3.0 0.0.0.255 allow all all unreachable icmp
permit any any icmp echo response allow any host 207.147.31.97 eq telnet tcp allow any host 192.168.20.1 eq telnet tcp permit tcp any eq www everything permit tcp any eq 443 all permit udp host 173.13.116.209 host 207.147.31.97 eq isakmp esp permits 173.13.116.209 host 207.147.31.97 IP 172.22.3.0 allow 0.0.0.255 172.20.3.0 0.0.0.255 refuse an entire ip TOWN_HALL extended IP access list IP 172.20.3.0 allow 0.0.0.255 172.18.3.0 0.0.0.255 ! alias exec sr show run alias exec s sh ip int br alias exec srt show ip route ! Line con 0 exec-timeout 0 0 Synchronous recording line to 0 line vty 0 4 exec-timeout 60 0 Synchronous recording local connection transport telnet entry ! No Scheduler allocate NTP-period clock 17180009
end
Make sure you have the following sets of transformations in used through the tunnel: The tunnel seems to be failing on the negotiations of the phase 2 due to incompatibility, but depending on the configuration Are you sure that these debugs are not only a part of the negotiations and finally the established tunnel? Check the condition of the tunnel with the commands: Federico. SMTP: MAIL FROM: [email protected] / * / blocks / expires First of all, I'm not a customer of Cisco, but a user of a network by a facility of PIX firewall. My username does not mean that I am affiliated with Cisco; It's just a way for me to remember it. I can't give you more details than the fact that there is a PIX protecting the network. I don't have its version number, unfortunately. In any case, here's the deal: I think that there is a bug in the way PIX handles SMTP sessions. Specifically, it seems to block/time out when I Specifies an address (MAIL FROM or RCPT TO) that contains a pipe character, ' | '. Some tests: (1) mail via localhost: no problem (2) mail via the internal host: no problem (no not a firewall) (3) mail via the external host: has a problem, but not systematically The interesting part is that the bug does not always occur. When I RCPT TO: [email protected]/ * / directly, everything stops and the connection times out. However, if I first RCPT TO: [email protected] / * / and subsequently, * in the same SMTP session *, RCPT TO: [email protected]/ * / he * is * working. Rather peculiar. Relevant sessions (with netcat): > [email protected] / * /: ~ $ nc firewalled.example.org smtp > 220 firewalled.example.org ESMTP Sendmail 8.12.10/8.11.4; Friday 20 August 2004 11:50:30 + 0200 > HELO example.org > 250 firewalled.example.org Hello [213.196.33.33], the pleasure to meet you > MAIL FROM: [email protected] / * / > 250 2.1.0 [email protected] / * /... Sender OK > RCPT TO: [email protected]/ * /. My orders starts with a ">", responses from the server with ' > '. As you can see, nothing happens after the RCPT TO command with a ' | '. > [email protected] / * /: ~ $ nc firewalled.example.org smtp > 220 firewalled.example.org ESMTP Sendmail 8.12.10/8.11.4; Friday 20 August 2004 11:51:13 + 0200 > HELO example.org > 250 firewalled.example.org Hello [213.196.33.33], the pleasure to meet you > MAIL FROM: [email protected] / * / > 250 2.1.0 [email protected] / * /... Sender OK > RCPT TO: [email protected] / * / > 250 2.1.5 [email protected] / * /... Recipient OK > DATA > 354 enter mail, end with "." on a line by itself > Subject: test 2 [email protected] / * / > . > 2.0.0 250 i7K9pD9i022438 Message accepted for delivery > MAIL FROM: [email protected] / * / > 250 2.1.0 [email protected] / * /... Sender OK > RCPT TO: [email protected]/ * /. > 250 2.1.5 [email protected]/ * /... Recipient OK > DATA > 354 enter mail, end with "." on a line by itself > Subject: [email protected]test *. > . > 2.0.0 250 i7K9pD9j022438 Message accepted for delivery > QUIT > 221 2.0.0 firewalled.example.org closing connection The first RCPT is to [email protected] / * / and works very well. Then, after the opinion of "message accepted", I begin a new mail and RCPT TO [email protected]/ * / * fact * work.
Is this a bug in the software PIX itself? Network administrators say they have no special rules put in place and suggest that I just have to use an address without a ' | '. The problem is that requires change of address confirmation e-mails, but they never get through. In addition, the syntax of the address is valid. Anyone can shed light on this issue? You can reproduce it on your installation? Nice analysis... maybe you should work with the PIX a little more.
In this case, however, no bug in the PIX (except that we through sometimes by your remark above). This behavior is specified. Of http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/config/fixup.htm#wp1103507 "The MAIL and RCPT commands specify who is the sender and the recipient of the mail. The e-mail addresses are analysed for strange characters. The pipeline character (|) is removed (replaced by a white space) and "<" "="">" are allowed if they are used to define an e-mail address ("' >" "must be preceded of '")<>
There was some talk to the command pipelinig user definable, but at this time, no final word. Sorry for the trouble. Scott How can I block the SMTP for all users but mail server I can't understand (1) how can I refuse port 25 for all users on the network and allow for Exchange server SMTP, also I have MS Exchange, which manages the web and smtp and in my setup below you can see that there static mapping to publick ip with http/smtp only, then (2) how can we separate the traffic entering a publc IP will outside servers inside ex : (MSexchange public ip address is x.x.x.207-> http = 172.16.2.13, 172.16.2.14 = smtp) Thank you ___________________________________________________ 6.3 (1) version PIX interface ethernet0 car Auto interface ethernet1 ethernet0 nameif outside security0 nameif ethernet1 inside the security100 names of name 172.16.4.10 pdc name 172.168.4.11 llc name 172.16.4.11 ftp object-group service E-mail tcp port-object eq www EQ smtp port object object-group service tcp - udp terminal 3389 3389 port-object range object-group service mw tcp - udp Beach of port-object 367 367 radmin tcp service object-group RemoteAdmin description 4899 4899 object-port Beach object-group service mw1 tcp Beach of port-object 367 367 access-list 101 tcp refuse any any eq smtp access-list 101 permit tcp any host object-group x.x.x.251 terminal access-list 101 permit tcp any host x.x.x.214 object-group radmin access-list 101 permit tcp any email host x.x.x.207 object-group access-list 101 permit tcp any host x.x.x.212 object-group mw1 access-list 101 permit tcp any host x.x.x.211 eq ftp sheep ip access-list allow any 192.168.101.0 255.255.255.240 IP address outside x.x.x.194 255.255.255.192 IP address inside 172.16.2.1 255.255.0.0 IP verify reverse path to the outside interface IP verify reverse path inside interface alarm action IP verification of information IP audit attack alarm drop action IP local pool mypool 192.168.101.1 - 192.168.101.20 don't allow no history of pdm ARP timeout 14400 Global interface 10 (external) NAT (inside) 0 access-list sheep NAT (inside) 10 0.0.0.0 0.0.0.0 0 0 static (inside, outside) x.x.x.212 172.16.4.12 netmask 255.255.255.255 0 0 static (inside, outside) x.x.x.251 172.16.4.51 netmask 255.255.255.255 0 0 public static x.x.x.214 (Interior, exterior) pdc netmask 255.255.255.255 0 0 public static x.x.x.211 (Interior, exterior) ftp netmask 255.255.255.255 0 0 "REM # 172.16.2.13's Exchange with Outlook Web servers # static (inside, outside) x.x.x.207 172.16.2.13 netmask 255.255.255.255 0 0 Access-group 101 in external interface Route outside 0.0.0.0 0.0.0.0 x.x.x.193 1 enable floodguard Sysopt connection permit-pptp VPDN PPTP-VPDN-group accept dialin pptp VPDN group PPTP-VPDN-GROUP ppp authentication pap VPDN group PPTP-VPDN-GROUP ppp authentication chap VPDN group PPTP-VPDN-GROUP ppp mschap authentication VPDN group PPTP-VPDN-GROUP ppp encryption mppe 40 VPDN group VPDN GROUP-PPTP client configuration address local mypool VPDN group VPDN GROUP-PPTP client configuration dns 172.16.2.6 172.16.4.6 client PPTP-VPDN-GROUP VPDN group configuration wins nymc_pdc VPDN group VPDN GROUP-PPTP pptp echo 60 VPDN group VPDN GROUP-PPTP client for local authentication VPDN username * password *. VPDN allow outside This is your problem: Access-group 101 in external interface You link this access list to your external interface. This means that the rules are applied to incoming traffic IN your network. The implicit IP any any rule is because you have not bound to an access list on your inside interface. To prevent users from going out, you will need this: access list permit tcp host exchange_IP OUTPUT no matter what eq smtp access list tcp OUTPUT deny any any eq smtp Access-group interface inside OUT
See how this access list is linked to the inside interface... it will affect traffic leaving your network. Note: Once you apply this inside allow any interface it will remove the implicit. Exchange e-mail servers run ESMTP. The only way that the PIX firewall allows ESMTP is to disable the correction of SMTP 25. Does that not create security expsoures on the firewall for SMTP. Is there a way to customize mailguard to protect SMTP and still allow ESMTP through. regds Johnny This is a free update if you have a smartnet contract on your PIX. A Smartnet contract gives you the software updates on the material covered. Hope that this helps explain the issues. Scott VPN and fixup protocol smtp 25 yet another VPN question... Sorry! I have a VPN site-to-site running between 2 515E, everything works fine... but I have to disable the function of mail-Guard of two pix if I want the 2 servers exchange to send the email to one of the other. is there anyway I can turn on this feature and always allow exchange servers to send e-mail? Thank you We have several sites with disabled mail Guard, and so far there is no drama. I was wondering why you want to reactivate. I'm able to add my mail at the post office, but it says error IMAP and SMTP I am able to add my accounts (I have a yahoo and gmail) but they are not connected. Connection doctor says its an error with IMAP and SMTP. I also have trouble with the addition of outlook. I also installed Outlook 2016 and yahoo and gmail also have problems connecting through the IMAP and SMTP. Can someone give me a suggestions to solve this problem? First of all, make sure you have an active Internet connection by opening a web browser and try to use your accounts through their webmail interface. If it works, so be sure that you are on a reliable WiFi network (for example, at home) which does not block e-mail protocols. And finally, if you have any security antivirus or other software installed on your Mac, then remove it completely according to the manufacturer's instructions, restart and then try to add your accounts again. my (spoof) email is sending spam to my own email address. Why block an IP address in Firefox will stop spam e-mail sent or received? You can set up a spam filter in the email account that receives emails which lead all account e-mail messages received (spoof) email in the spam folder and then empty the folder spam on a regular basis. And this is not appropriate, you should contact the host of e-mail for the account that sends as spam and ask for help or for a solution. Beyond that, that's not a Firefox support question, doesn't Firefox by e-mail. Firefox can be accessed and used via web browser HTTP - HTTPS webmail services protocols. Email communications use different protocols - POP3 - SMTP. could not connect to the smtp server Hi all I'm on a 21.5-inch iMac using OS 10.11.3 at the end of 2012. Yesterday (and today...) Mail would not send anything and gives me a status 'offline' for sending. I use Gmail IMAP with 2 accounts. The same problem happened to my wife on his computer with the shared e-mail account. My iPhone (4) will send the mail from the same account. If I log in to Gmail directly I can send emails. I deleted the account and re-written information. I quit Mail and restarted the computer. I looked at several solutions in the forums and have tried what appear to be common ones (that I could find), but nothing seems to work. After restart of the account Gmail sent me an email saying I had been blocked for using a "precarious" app, and I checked my Gmail settings so that I can use less secure (as the devil which means?) apps. The problem persists... Mail connection doctor says that it is connected to the internet and my 2 IMAP accounts work, but 2 SMTP accounts (I guess for the sending of?) say "not able to connect to this SMTP server. It all started yesterday without changing all the settings or preferences that I know. Any ideas? Michael Have you checked the SMTP settings for the latest recommendations googles? Changed something on their end recently? You run a 3rd party cleaning apps (clean my mac, mac guardian, etc.) or AN Anti Virus on your Mac? If so, remove them. have you installed anything between mail works and does not? If so, remove it. SMTP problem with the recipient's address Hi, I made a copy of the function of SMTP Email message send to use it with another port smtp (as 587). Everything works well when the recipient's address is like [email protected] or any what normal address. The problem is when I'm trying to use this function to send an e-mail to an address like [email protected]. Each email to the address of the company is like the second example. Does anyone have an idea to solve this problem? I had the same problem with my mail server @msu.edu. The problem is that many companies use TLS or SSL security settings. There are ways around this problem. I have attached a VI that should work for you. I can't take credit for the VI, it was given to me by a person on the forums. I've just modified it a bit. Edit: If you look at the block diagram, upward, there is a node to invoke. It's for "SMTP Client", and the element is "host". And you may need to change the port as well. I also customized the VI icon, but you can leave if you like it Hello Sir, I have a problem with one of my SBS Exchange 2003 servers. At first, I was getting a lot of 3008 errors for a non-delivery report with a status code of 5.0.0 was generated for recipient rfc822; address email is removed from the privacy * all these repeated error messages from the event log, SMTP and Exchange Routing service... I looked around and discovered more than 10000 .eml in my x:\program files\exchsrv\mailroot\queue folder. At first, I thought that my server or one of my workstations was compromised, but all workstations have local antiviral software (symantec endpoint protection), my server software also has antiviral and I have a mail server antivirus (symantec endpoint protection). I scanned all of the computers on the network and even tried almost all of them closing to see if new entries have been created in the queue. Unfortunately, more than entries kept by appearing so I kept looking. By opening one of the .eml, I discovered my own responsibility that I attach to outgoing emails if I have my server acted as a mail relay. I checked for this and I have been clean. I kept searching in the .eml and discovered different origins IPs of the Internet. Am I right to assume that my mail server is BOMBED or attacked with emails with false return addresses and my mail server sends return NDR for spammers/compromised machines on the net? I tried to stop the exchange services and tried to rename the vsi file 1 to something else as one of the suggested MSKB, but the file was protected. How can I stop this, it's slowing down my mail server and fill out my HD. I can't block the IP to shippers because it comes from everywhere. Help! There are about 2 to 5 new .eml created every minute! TKS and best regards, LT Hi Lennet, Your question is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please post your question in the forum TechNet for assistance: Hope the helps of information. HP Officejet Pro 8600 N911g: HP Officejet Pro 8600 N911g Question add GMAIL SMTP Hello I want to have 2 shippers when I scan to email. My GMAIl SMTP works perectly. Those of my wife at all (test KO). Of course, I tried/retried the login/password, the firmware update (printer is up-to-date) I also tried tab setting (via web print server) the option "mail server". I filled SMTP ID my wife and it worked. (Test OK) Where is the problem? Thanks in advance for your comments Marc Hello First, open the following link and ensure that you are connected to the same account that you are facing problems of implementation. In the section connection & security click on signature in Google and make sure 'The 2-Step check' is defined as 'Off '. In the left pane click on connected applications & sites and make sure that 'Access to less secure applications' is defined as 'ON', otherwise the check fails. In the left pane click peripheral activity & notifications, within the "security events" section click on the link to control events and make sure there is no connection blocked attempt (it will be highlighted in red), if there is no warning, proceed to the screen to ensure there is no block for this device. Once you are running a test for the outgoing user profile and check if the problem resolved. Kind regards Unable to connect to the outgoing SMTP server. I have two computers that I send and receive my email. The two computer email settings are identical and have never been altered or tampered with. Recently my desktop computer now will not send e-mail. He receives by e-mail very well. I have full internet access and no further questions of the functioning of any software or hardware on this computer. Yet, it does not connect to servier the smtp Protocol to send outgoing emails. I checked and double checked all the settings and configurations of installation as dictated by MSN for email. All the settings are the same on both computers. Both computers use Windows XP. Both computers connect to the internet via a LAN connection. Since all settings are the same on both computers and my desktop computer is the only one who will not send, what in the world could be the problem and how can I fix this problem? Microsoft doesn't seem to be of any help at this point. Brimik, If you need help then let us know what customer e-mail, that you are using and what error message (s) you found. Mike - Engineer Support Microsoft Answers What should I put in the space that says SMTP? I tried and is trying to find its mode of operation of my outlook express 6. And I know now that I'm a pop 3, and I have use hotmail.com, cause it happens in the next block. http://services.MSN.com/svcs/hotmail/httpmail.asp But what I don't know is what happens in the box which has the thing SMTP on this subject, can someone please tell me? Now I am hooked to the Charter.net, but'm Hotmail.com, so what I need to understand what is really happening? And now on the ports, what are the numbers that goes there? Please, all I ask is help here. And there's something else here that I feel should be discussed here with you all. It's that Microsoft wonder do not give any information about things such as phone numbers and addresses and others, but still all those I visited, I was invited to give the information to Hot mail all my information, such as addresses, phone numbers of business place and wants even a picture of me I do not think that I have nothing to hide from everyone, I'm an open book, I have no secrets about me, and I do not lie to anyone about anything. And I have a child gone, looking for the police and I need to stay in toouch with him throughout each stage of the investigation. Also, I am member of a clan that I grew up in and I still have friends that Klan and we talk on the internet, because we have nothing to hide. So, I want to mknow what is the problem on this topic? Also, I am in permanent contact with the President of the United States, on various issues that I am also very open to the subject. I think that my business as long as the writer is my business, and what I send so should my business and not Microsofts. I realize that all account you will feel you are trying to protect me, but I don't need your protection. What I need is honesty from you all. I appreciate it as much as I'd do it what you do now! Sincerely: Cloud of Songbird one It also has what looks like maybe an Asian symbol upwards in the left corner, and I can't do a thing at all. Very frustrating because I can't find anything online to help... Thank you. Let me know if you need more information. Value of cluster lost when you leave the structure of the case Hi all I'm having a problem with a particular VI I'm working. (FYI it's in Labview 8.0) The VI is set to run a current source, voltmeter and thermometer, then recording and graph the data in various ways that can be selected by the user. Everything s How can I burn mp3 to a cd in windows media player How can I burn mp3 to a cd in windows media player Error, device ata Optiarc dvd rw ad - 7563 has I just noticed this problem. When I went to download the software for a new printer he wouldn't have anything as much as any screen or formatting. The error is OPTIARC DVD RW AD - 7563 ATA DEVICE A. I tried to fix it in the DEVICE MANAGER but repeat Day before yesterday I cloned git://gitorious.org/qt/qt.git (commit d8473681955bd96f8dd9cb22ad2597a9b7479d80) and cannot build it. It is built with qmake success, but when it gets to the moc building I get this error: g ++-Wl,-rpath-link,/Users/eyurcSimilar Questions
Crypto ipsec transform-set esp - esp-md5-hmac TOWN_HALL
It seems very well.
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In trying to establish the tunnel again and we will see the results.
How can I block an IP address in Firefox?
Block an IP address from your computer would do nothing to stop the spam to be sent from an e-mail account. All you would achieve is not able to communicate with your mail host. You don't not be able to see one of your e-mail messages from the blocked IP address and spam would continue to be sent and received.
You will need to change that to 'mail.msu.edu' to any server used by your company.
Gmail offers several options of security which are not supported by the printer and it will block to connect to their servers.
https://myaccount.Google.com/
Shlomi
I just want to check that I understand the installation program. You have two computers to check your email. Is your office and it doesn't send email more. If this is correct, then it seems that if your outgoing mail server port is blocked in your office. If you are able to check with your IT Department, they should be able to tell if something could block the port leaving 995.
Or if you have installed a firewall program, it could be blocking that as well. If you need to make sure that you will allow access to the program of electronic mail within the firewall program.
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