* [gentoo-user] {OT} cool new postfix whitelist feature
@ 2013-09-01 10:16 Grant
0 siblings, 0 replies; only message in thread
From: Grant @ 2013-09-01 10:16 UTC (permalink / raw
To: Gentoo mailing list
postfix has a new whitelist feature in 2.11. A main.cf config like this:
postscreen_greet_action = enforce
postscreen_pipelining_enable = yes
postscreen_pipelining_action = enforce
postscreen_non_smtp_command_enable = yes
postscreen_non_smtp_command_action = enforce
postscreen_bare_newline_enable = yes
postscreen_bare_newline_action = enforce
postscreen_dnsbl_sites = zen.spamhaus.org list.dnswl.org*-1
postscreen_dnsbl_whitelist_threshold = -1
means you're using a blacklist (zen.spamhaus.org), whitelist
(list.dnswl.org), and greylisting everything else. I'm not getting
spam anymore and I don't think I'm rejecting legitimate mail either.
I was having a problem with the 450 greylisting response causing
permanent bounces with mail servers that don't retry (comcast.net for
example) but the whitelist has fixed it and most mail is delivered a
lot faster since it doesn't have to retry.
- Grant
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