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- # POP3 - Post Office Protocol version 3 (popular e-mail protocol) - RFC 1939
- # Pattern quality: good veryfast
- #
- # This pattern has been tested somewhat. If it does not
- # work for you, or you believe it could be improved, please post to
- # l7-filter-developers@lists.sf.net . This list may be subscribed to at
- # http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
- # this is a difficult protocol to match because of the relative lack of
- # distinguishing information. Read on.
- pop3
- # this the most conservative pattern. It should definitely work.
- #^(\+ok|-err)
- # this pattern assumes that the server says _something_ after +ok or -err
- # I think this is probably the way to go.
- ^(\+ok |-err )
- # more that 90% of servers seem to say "pop" after "+ok", but not all.
- #^(\+ok .*pop)
- # Here's another tack. I think this is my second favorite.
- #^(\+ok [\x09-\x0d -~]*(ready|hello|pop|starting)|-err [\x09-\x0d -~]*(invalid|unknown|unimplemented|unrecognized|command))
- # this matches the server saying "you have N messages that are M bytes",
- # which the client probably asks for early in the session (not tested)
- #\+ok [0-9]+ [0-9]+
- # some sample servers:
- # RFC example: +OK POP3 server ready <1896.697170952@dbc.mtview.ca.us>
- # mail.dreamhost.com: +OK Hello there.
- # pop.carleton.edu: +OK POP3D(*) Server PMDFV6.2.2 at Fri, 12 Sep 2003 19:28:10 -0500 (CDT) (APOP disabled)
- # mail.earthlink.net: +OK NGPopper vEL_4_38 at earthlink.net ready <25509.1063412951@falcon>
- # *.email.umn.edu: +OK Cubic Circle's v1.22 1998/04/11 POP3 ready <7d1e0000da67623f@aquamarine.tc.umn.edu>
- # mail.yale.edu: +OK POP3 pantheon-po01 v2002.81 server ready
- # mail.gustavus.edu: +OK POP3 solen v2001.78 server ready
- # mail.reed.edu: +OK POP3 letra.reed.edu v2002.81 server ready
- # mail.bowdoin.edu: +OK mail.bowdoin.edu POP3 service (iPlanet Messaging Server 5.2 HotFix 1.15 (built Apr 28 2003))
- # pop.colby.edu: +OK Qpopper (version 4.0.5) at basalt starting.
- # mail.mac.com: +OK Netscape Messaging Multiplexor ready
- # various error strings:
- #-ERR Invalid command.
- #-ERR invalid command
- #-ERR unimplemented
- #-ERR Invalid command, try one of: USER name, PASS string, QUIT
- #-ERR Unknown AUTHORIZATION state command
- #-ERR Unrecognized command
- #-ERR Unknown command: "sadf'".
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