2 votes
Accepted

Why it's recommended to run Postfix in a chroot jail?

How an attacker can give an access to the file system when only 25 and 587 ports are available from outside? How is it possible via the SMTP protocol? Does it have vulnerabilities? A protocol usually ...
u1686_grawity's user avatar
1 vote

Too many connect from unknown postfix

The root cause of the "problem" (which is not actually a problem) is that Postfix will log connect from unknown[IP] when it fails FCrDNS. This means Postfix tries to first look up the PTR ...
jpiddle888's user avatar

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