Postfix is a free and open-source mail transfer agent (also "MTA"), written in 1997 and still actively developed.

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Terminal mail delivery delay in Mac OS X

I'm using mail from the Mac OS X terminal to send the results of a database query to me via email. Most of the time it works, but sometimes there is a long delay before the mail arrives (often when ...
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Postfix: change recipient_delimiter with virtual_mailboxes

I have an email setup using Postfix, Dovecot, PostgreSQL. I am trying to change the recipient_delimiter to be - (dash) instead of + (plus) but the address are being rejected. In order to get the + ...
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1answer
459 views

Postfix allows unauthenticated users to send emails

Hey I set up Postfix to use cyrus SASL implantation and I'm able to login and send emails, but I can still telnet on port 25 and send mails even if I'm not authenticated, which I whish to deny. ...
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Blocking or filtering chinese spam using postfix

My mail server runs postfix, spamassassin, amavis and sieve. Using a combination of any of these, is it possible to block or tag any mail I receive that is written in non-"English" characters? I.e ...