github
/
fail2ban
mirror of https://github.com/fail2ban/fail2ban
1
0
Fork 0
Code Issues Releases Wiki Activity

filter.d/sendmail-reject.conf: fix reverse DNS for ... (gh-3012)

pull/3117/head
sebres 2021-05-29 17:45:02 +02:00
parent 1627d4f573
commit 87f717e0e0
2 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
config/filter.d/sendmail-reject.conf
View File

@ -25,7 +25,7 @@ addr = (?:(?:IPv6:)?<IP6>|<IP4>)
prefregex = ^<F-MLFID>%(__prefix_line)s</F-MLFID><F-CONTENT>.+</F-CONTENT>$
cmnfailre = ^ruleset=check_rcpt, arg1=(?P<email><\S+@\S+>), relay=(\S+ )?\[%(addr)s\](?: \(may be forged\))?, reject=(550 5\.7\.1 (?P=email)\.\.\. Relaying denied\. (IP name possibly forged \[(\d+\.){3}\d+\]|Proper authentication required\.|IP name lookup failed \[(\d+\.){3}\d+\])|553 5\.1\.8 (?P=email)\.\.\. Domain of sender address \S+ does not exist|550 5\.[71]\.1 (?P=email)\.\.\. (Rejected: .*|User unknown))$
cmnfailre = ^ruleset=check_rcpt, arg1=(?P<email><\S+@\S+>), relay=(\S+ )?\[%(addr)s\](?: \(may be forged\))?, reject=(?:550 5\.7\.1(?: (?P=email)\.\.\.)?(?: Relaying denied\.)? (?:IP name possibly forged \[(\d+\.){3}\d+\]|Proper authentication required\.|IP name lookup failed \[(\d+\.){3}\d+\]|Fix reverse DNS for \S+)|553 5\.1\.8(?: (?P=email)\.\.\.)? Domain of sender address \S+ does not exist|550 5\.[71]\.1 (?P=email)\.\.\. (Rejected: .*|User unknown))$
^ruleset=check_relay(?:, arg\d+=\S*)*, relay=(\S+ )?\[%(addr)s\](?: \(may be forged\))?, reject=421 4\.3\.2 (Connection rate limit exceeded\.|Too many open connections\.)$
^rejecting commands from (\S* )?\[%(addr)s\] due to pre-greeting traffic after \d+ seconds$
^(?:\S+ )?\[%(addr)s\]: (?:(?i)expn|vrfy) \S+ \[rejected\]$

2
fail2ban/tests/files/logs/sendmail-reject
View File

@ -72,6 +72,8 @@ Feb 13 01:16:50 batman sm-mta[25815]: s1D0GoSs025815: [217.193.142.180]: vrfy in
# failJSON: { "time": "2005-02-22T14:02:44", "match": true , "host": "24.73.201.194" }
Feb 22 14:02:44 batman sm-mta[4030]: s1MD2hsd004030: rrcs-24-73-201-194.se.biz.rr.com [24.73.201.194]: VRFY root [rejected]
# failJSON: { "time": "2005-02-22T15:20:27", "match": true , "host": "192.0.2.5", "desc": "Fix reverse DNS for ... (gh-3012)" }
Feb 22 15:20:27 localhost sm-mta[275631]: 13O9Ixhq275631: ruleset=check_rcpt, arg1=<linda@domain.com>, relay=[192.0.2.5], reject=550 5.7.1 <linda@domain.com>... Fix reverse DNS for 192.0.2.5
# failJSON: { "match": false }
Nov 3 11:35:30 Microsoft sendmail[26254]: rA37ZTSC026250: <arhipov@domain.com>... No such user here