Suddenly cannot send mail. Message 4.7.1: Recipient address rejected: rejection policy - your host has been blacklisted for e-mail abuse.

When I try to send a message an error box apperars:

An error occurred while sending mail. The mail server responded:
4.7.1 < ***@***.com >: recipient address rejected: rejection policy - your host has been blacklisted for e-mail abuse. Please configure your email client to use authentication SASL - contact support if in doubt how...

Please check the message recipient "*********@******.com" and try again.

This happened while I was sending about #3 4 or 5 that I must send. Nothing I know has been changed has been changed! I have downloaded the latest version while I was in the program.

This seems to be a message from a server. The word 'host' is not clear to me. In the language of networking, it can mean your own computer, but more generally, it could mean your ISP provider or by e-mail.

Anyway, this means that something has decided that you are, or are on a network that has been identified as a source of spam. I suggest that ask you this from your ISP.

Tags: Thunderbird

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