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Extensions for the Postfix policyd service. Allow exceptions for the number of messages and the number of recipients.

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This commit is contained in:
Christoph
2026-07-02 20:38:19 +02:00
parent 3b4ba60bb7
commit 7223219b08
7 changed files with 76 additions and 28 deletions
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roles/common/files/mailserver/etc/postfix/postfwd.cf
+14
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@@ -172,12 +172,26 @@ id=BLOCK_MSG_RCPT
recipient_count=90
action=REJECT Too many recipients, please reduce to less than 90 or consider using a mailing list. Error: BLOCK_MSG_RCPT
# Higher rate limit for users in exception list
id=RATE_MSG_EXCEPTION
&&INCOMING
&&SASL_AUTH
sasl_username==file:/etc/postfix/postfwd.high-rate-number-messages
action=rate($$sasl_username/500/3600/450 4.7.1 Number messages per hour exceeded. Error:RATE_MSG_EXCEPTION)
# Block users sending more than 50 messages/hour
id=RATE_MSG
&&INCOMING
&&SASL_AUTH
action=rate($$sasl_username/50/3600/450 4.7.1 Number messages per hour exceeded. Error:RATE_MSG)
# Higher recipient rate limit for specific users from file
id=RATE_RCPT_HIGH
&&INCOMING
&&SASL_AUTH
sasl_username==file:/etc/postfix/postfwd.rate-msg-exceptions
action=rcpt($$sasl_username/1000/3600/450 4.7.1 Number recipients per hour exceeded. Error:RATE_RCPT_HIGH)
# Block users sending more than 250 recipients total/hour
id=RATE_RCPT
&&INCOMING