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New jail for postfix: screendnsbl #3545

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New jail for postfix: screendnsbl #3545

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0d08fae
add trigger for postfix/postscreen DNSBL rank message
pbiering Jul 24, 2023
f57844e
add logline
pbiering Jul 24, 2023
ee789c2
fix as requested
pbiering Jan 16, 2024
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add trigger for postfix/postscreen DNSBL rank message
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@pbiering
pbiering committed Jul 24, 2023
commit 0d08faeb3231bb60dc4099262afd18519c10b5ed
4 changes: 4 additions & 0 deletions config/filter.d/postfix.conf
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Expand Up @@ -52,6 +52,10 @@ mdre-aggressive = %(mdre-auth2)s
mdpr-errors = too many errors after \S+
mdre-errors = ^from [^[]*\[<HOST>\]%(_port)s$

# Extra mode "screendnsbl", triggered on postfix/postscreen[<PID>]: DNSBL rank <NUM> for [<HOST>]:<PORT>
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I guess it is wrong mode name for DNS-based Blackhole List, correct would be dnsbl, but much better why not combine it with rbl?

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intention was to implement an optional feature, not extending/overwriting existing definitions leading to by others unexpected behavior

mdpr-screendnsbl = DNSBL rank \d+
mdre-screendnsbl = for \[<HOST>\]%(_port)s
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failregex = <mdre-<mode>>

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10 changes: 10 additions & 0 deletions config/jail.conf
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Expand Up @@ -599,6 +599,16 @@ backend = %(postfix_backend)s
maxretry = 1


[postfix-screendnbl]
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I'm still unsure it'd really expect a new jail.
I know there is one for RBL, but it is more for backwards compatibility reasons, however obsolete since mode rbl is included in mode normal too.

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intention was to implement an optional feature, not extending/overwriting existing definitions leading to by others unexpected behavior


filter = postfix[mode=screendnsbl]
port = smtp,465,submission
logpath = %(postfix_log)s
backend = %(postfix_backend)s
maxretry = 1
bantime = 4h


[sendmail-auth]

port = submission,465,smtp
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