Mail is taking forever to reach the destination - is it possible to "traceroute" a mail?

Last weekend, I upgraded an old server 10.4 to 10.6 and new material.

After some correction manually, he now works as it should. BUT - taking more than an hour to receive messages from certain senders! For example, I sent an email to an account Office 365, it took a minute. Another mail from a Gmail account took more than an hour...! ?

It is * not * the behavior before the upgrade, so I know for sure that something has happened. How can I find out what's wrong?

I think some sort of traceroute for e-mail. That is to say, to know if the error is somewhere on my server, or if Gmail is now the mail due to greylisting.

It's the same for different domains on the server of samer. For example "trojangames.se".

Any ideas?

Well you should start the essential and exclude variables - so, for example, do not send the email from an email client using an e-mail provider, but inject an email directly into your SMTP port to mail.trojangames.se/mail.macsystem.se.

https://www.Port25.com/how-to-check-an-SMTP-connection-with-a-manual-Telnet-Sess ion-2.

You will need to do this a static IP address, because your server is not blocking dynamic IPs via a search zen.spamhaus.org.

If you inject e-mail, see messages from your server responds with. Then you can know (including real time) the email has been accepted by your OS X.app.

As do the manual email SMTP injection check the SMTP log in.app on your machine. See what he says. If you have a usual configuration you should see Postfix given to Amavis and then mail relayed via Dovecot to the target user.

This should give you a clear view of what is happening. If the email is held by greylisting on your server (Gmail would greylist his own outgoing mail), you should see.

You can also make a direct injection of a client within your local network, from a user to another, to see and compare to incoming e-mail from the Internet.

Tags: Servers and Enterprise Software

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