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mailinabox/conf/fail2ban/jail.d/postfix-extra.conf
2022-09-04 20:57:50 +02:00

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# typically non smtp commands. Block fast for access to postfix
[miab-postfix-scanner]
enabled = true
port = smtp,465,587
filter = miab-postfix-scanner
logpath = /var/log/mail.log
maxretry = 2
findtime = 1d
bantime = 1h
# ip lookup of hostname does not match. Go easy on block
[miab-pf-rdnsfail]
enabled = true
port = smtp,465,587
mode = normal
filter = miab-postfix-rdnsfail
logpath = /var/log/mail.log
maxretry = 8
findtime = 12h
bantime = 30m
# ip lookup of hostname does not match with failure. More strict block
[miab-pf-rdnsfail-e]
enabled = true
port = smtp,465,587
mode = errors
filter = miab-postfix-rdnsfail[mode=errors]
logpath = /var/log/mail.log
maxretry = 4
findtime = 2d
bantime = 2h
# aggressive filter against ddos etc
[postfix-aggressive]
enabled = true
mode = aggressive
filter = postfix[mode=aggressive]
port = smtp,465,submission
logpath = %(postfix_log)s
backend = %(postfix_backend)s
maxretry = 100
findtime = 15m
bantime = 1h