# From IRC 2013-01-04
# failJSON: { "time": "2013-01-04T17:03:46", "match": true , "host": "24.106.174.74" }
2013-01-04 17:03:46 login authenticator failed for rrcs-24-106-174-74.se.biz.rr.com ([192.168.2.33]) [24.106.174.74]: 535 Incorrect authentication data (set_id=brian)
# From IRC 2013-06-13 XATRIX (Georgiy Mernov)
# failJSON: { "time": "2013-06-12T03:57:58", "match": true , "host": "120.196.140.45" }
2013-06-12 03:57:58 login authenticator failed for (ylmf-pc) [120.196.140.45]: 535 Incorrect authentication data: 1 Time(s)
# failJSON: { "time": "2013-06-12T13:18:11", "match": true , "host": "101.66.165.86" }
2013-06-12 13:18:11 login authenticator failed for (USER-KVI9FGS9KP) [101.66.165.86]: 535 Incorrect authentication data
# failJSON: { "time": "2013-06-10T10:10:59", "match": true , "host": "193.169.56.211" }
2013-06-10 10:10:59 H=ufficioestampa.it (srv.ufficioestampa.it) [193.169.56.211] sender verify fail for <user@example.com>: Unrouteable address
# http://forum.lissyara.su/viewtopic.php?f=20&t=29857
# 2010-11-24 21:48:41 1PLKOW-00046U-EW F=wvhluo@droolindog.com H=93-143-146-237.adsl.net.t-com.hr (droolindog.com) [93.143.146.237] I=[10.10.10.32]:25 P=esmtp temporarily rejected by local_scan(): Temporary local problem
# http://us.generation-nt.com/answer/exim-spamassassin-2010-0-x64-help-204020461.html
# 2011-07-07 15:44:16 1QexIu-0006dj-PX F=XXXXXX@XXXXXXXXXXXX H=localhost (saf.bio.caltech.edu) [127.0.0.1] P=esmtp temporarily rejected by local_scan(): Local configuration error - local_scan() library failure/usr/lib/exim/sa-exim.so: cannot open shared object file: No such file or directory
# failJSON: { "time": "2013-06-10T18:33:32", "match": true , "host": "202.132.70.178" }
2013-06-10 18:33:32 [10099] H=(yakult.com.tw) [202.132.70.178]:3755 I=[1.2.3.4]:25 F=menacedsj04@listserv.eurasia.org rejected RCPT dir@ml3.ru: relay not permitted
# failJSON: { "time": "2013-06-02T06:54:20", "match": true , "host": "211.148.195.192" }
2013-06-02 06:54:20 [13314] SMTP protocol synchronization error (input sent without waiting for greeting): rejected connection from H=[211.148.195.192]:25936 I=[1.2.3.4]:25 input="GET / HTTP/1.1\r\n\r\n"
# failJSON: { "time": "2013-06-02T09:05:48", "match": true , "host": "82.96.160.77" }
2013-06-02 09:05:48 [18505] SMTP protocol synchronization error (next input sent too soon: pipelining was not advertised): rejected "RSET" H=ba77.mx83.fr [82.96.160.77]:58302 I=[1.2.3.4]:25 next input="QUIT\r\n"
# failJSON: { "time": "2013-06-02T09:22:05", "match": true , "host": "163.14.21.161" }
2013-06-02 09:22:05 [19591] SMTP call from pc012-6201.spo.scu.edu.tw [163.14.21.161]:3767 I=[1.2.3.4]:25 dropped: too many nonmail commands (last was "RSET")
# failJSON: { "time": "2013-06-02T09:22:06", "match": true , "host": "192.0.2.109" }
2013-06-02 09:22:06 SMTP call from [192.0.2.109] dropped: too many syntax or protocol errors (last command was "AUTH LOGIN")
# failJSON: { "time": "2013-06-02T15:06:18", "match": true , "host": "46.20.35.114" }
2013-06-02 15:06:18 H=(VM-WIN2K3-1562) [46.20.35.114] sender verify fail for <usfh@technological-systems.com>: Unknown user
# failJSON: { "time": "2013-06-07T02:02:09", "match": true , "host": "91.232.21.92" }
2013-06-07 02:02:09 H=treeladders.kiev.ua [91.232.21.92] sender verify fail for <mailer@treeladders.kiev.ua>: all relevant MX records point to non-existent hosts
# failJSON: { "time": "2013-06-15T16:34:55", "match": true , "host": "182.18.24.93" }
2013-06-15 16:34:55 H=mx.tillions.com [182.18.24.93] F=<buh@caladan.ebay.sun.com> rejected RCPT <ruslan@maslovskiy.com.ua>: Sender verify failed
# failJSON: { "time": "2013-06-15T16:36:49", "match": true , "host": "111.67.203.116" }
2013-06-15 16:36:49 H=altmx.marsukov.com [111.67.203.116] F=<kadrofutcheti@mail.ru> rejected RCPT <oksana@birzhatm.ua>: Unknown user

# 'https://github.com/fail2ban/fail2ban/pull/251#issuecomment-23001227' 
# failJSON: { "time": "2013-08-20T07:48:02", "match": true , "host": "85.25.92.177" }
2013-08-20 07:48:02 login authenticator failed for static-ip-85-25-92-177.inaddr.ip-pool.com (USER) [85.25.92.177]: 535 Incorrect authentication data: 1 Time(s)
# failJSON: { "time": "2013-08-20T23:30:05", "match": true , "host": "91.218.72.71" }
2013-08-20 23:30:05 plain authenticator failed for ([192.168.2.102]) [91.218.72.71]: 535 Incorrect authentication data: 1 Time(s)

# failJSON: { "time": "2013-09-02T09:19:07", "match": true , "host": "118.233.20.68" }
2013-09-02 09:19:07 login authenticator failed for (gkzwsoju) [118.233.20.68]: 535 Incorrect authentication data

# failJSON: { "time": "2014-01-12T02:07:48", "match": true , "host": "85.214.85.40" }
2014-01-12 02:07:48 dovecot_login authenticator failed for h1832461.stratoserver.net (User) [85.214.85.40]: 535 Incorrect authentication data (set_id=scanner)

# failJSON: { "time": "2019-10-22T03:39:17", "match": true , "host": "192.0.2.37", "desc": "pid-prefix in form of 'mx1 exim[...]:', gh-2553" }
2019-10-22 03:39:17 mx1 exim[29786]: dovecot_login authenticator failed for (User) [192.0.2.37]: 535 Incorrect authentication data (set_id=test@domain.com)

# failJSON: { "time": "2014-12-02T03:00:23", "match": true , "host": "193.254.202.35" }
2014-12-02 03:00:23 auth_plain authenticator failed for (rom182) [193.254.202.35]:41556 I=[10.0.0.1]:25: 535 Incorrect authentication data (set_id=webmaster)

# failJSON: { "time": "2016-03-18T00:34:06", "match": true , "host": "45.32.34.167" }
2016-03-18 00:34:06 [7513] SMTP protocol error in "AUTH LOGIN" H=(ylmf-pc) [45.32.34.167]:60723 I=[172.89.0.6]:587 AUTH command used when not advertised
# failJSON: { "time": "2016-03-19T18:40:44", "match": true , "host": "92.45.204.170" }
2016-03-19 18:40:44 [26221] SMTP protocol error in "AUTH LOGIN aW5mb0BtYW5iYXQub3Jn" H=([127.0.0.1]) [92.45.204.170]:14243 I=[172.89.0.6]:587 AUTH command used when not advertised
# failJSON: { "time": "2016-05-17T06:25:27", "match": true , "host": "69.10.61.61", "desc": "from gh-1430" }
2016-05-17 06:25:27 SMTP protocol error in "AUTH LOGIN" H=(ylmf-pc) [69.10.61.61] AUTH command used when not advertised
# failJSON: { "time": "2016-03-21T06:38:05", "match": true , "host": "49.212.207.15" }
2016-03-21 06:38:05 [5718] no MAIL in SMTP connection from www3005.sakura.ne.jp [49.212.207.15]:28890 I=[172.89.0.6]:25 D=21s C=EHLO,STARTTLS
# failJSON: { "time": "2016-03-21T06:57:36", "match": true , "host": "122.165.71.116" }
2016-03-21 06:57:36 [5908] no MAIL in SMTP connection from [122.165.71.116]:2056 I=[172.89.0.6]:25 D=0s
# failJSON: { "time": "2016-03-21T06:57:36", "match": true , "host": "122.165.71.116" }
2016-03-21 06:57:36 [5908] no MAIL in SMTP connection from [122.165.71.116] I=[172.89.0.6]:25 D=10s
# failJSON: { "time": "2016-03-21T04:07:49", "match": true , "host": "174.137.147.204" }
2016-03-21 04:07:49 [25874] 1ahr79-0006jK-G9 SMTP connection from (voyeur.webair.com) [174.137.147.204]:44884 I=[172.89.0.6]:25 closed by DROP in ACL
# failJSON: { "time": "2016-03-21T04:33:13", "match": true , "host": "206.214.71.53" }
2016-03-21 04:33:13 [26074] 1ahrVl-0006mY-79 SMTP connection from riveruse.com [206.214.71.53]:39865 I=[172.89.0.6]:25 closed by DROP in ACL
# failJSON: { "time": "2016-03-21T04:33:14", "match": true , "host": "192.0.2.33", "desc": "short form without optional session-id" }
2016-03-21 04:33:14 SMTP connection from (some.domain) [192.0.2.33] closed by DROP in ACL

# failJSON: { "time": "2016-04-01T11:08:39", "match": true , "host": "192.0.2.1" }
2016-04-01 11:08:39 [18643] no MAIL in SMTP connection from host.example.com (SERVER) [192.0.2.1]:1418 I=[172.89.0.6]:25 D=34s C=EHLO,AUTH
# failJSON: { "time": "2016-04-01T11:08:40", "match": true , "host": "192.0.2.2" }
2016-04-01 11:08:40 [18643] no MAIL in SMTP connection from host.example.com (SERVER) [192.0.2.2]:1418 I=[172.89.0.6]:25 D=2m42s C=QUIT
# failJSON: { "time": "2016-04-01T11:09:21", "match": true , "host": "192.0.2.1" }
2016-04-01 11:09:21 [18648] SMTP protocol error in "AUTH LOGIN" H=host.example.com (SERVER) [192.0.2.1]:4692 I=[172.89.0.6]:25 AUTH command used when not advertised
# failJSON: { "time": "2016-03-27T16:48:48", "match": true , "host": "192.0.2.1" }
2016-03-27 16:48:48 [21478] 1akDqs-0005aQ-9b SMTP connection from host.example.com (SERVER) [192.0.2.1]:47714 I=[172.89.0.6]:25 closed by DROP in ACL

# failJSON: { "time": "2017-04-23T22:45:59", "match": true , "host": "192.0.2.2", "desc": "optional part (...)" }
2017-04-23 22:45:59 fixed_login authenticator failed for bad.host.example.com [192.0.2.2]:54412 I=[172.89.0.6]:587: 535 Incorrect authentication data (set_id=user@example.com)
# failJSON: { "time": "2017-05-01T07:42:42", "match": true , "host": "192.0.2.3", "desc": "rejected RCPT - Unrouteable address" }
2017-05-01 07:42:42 H=some.rev.dns.if.found (the.connector.reports.this.name) [192.0.2.3] F=<some.name@some.domain> rejected RCPT <some.invalid.name@a.domain>: Unrouteable address

# failJSON: { "time": "2017-11-28T14:14:30", "match": true , "host": "192.0.2.4", "desc": "lower case AUTH command" }
2017-11-28 14:14:30 SMTP protocol error in "auth login" H=(roxzgj) [192.0.2.4] AUTH command used when not advertised
# failJSON: { "time": "2017-11-28T14:14:31", "match": true , "host": "192.0.2.5", "desc": "mixed case AUTH command" }
2017-11-28 14:14:31 SMTP protocol error in "aUtH lOgIn" H=(roxzgj) [192.0.2.5] AUTH command used when not advertised
# failJSON: { "time": "2017-11-28T14:14:32", "match": true , "host": "192.0.2.6", "desc": "quoted injecting on AUTH command" }
2017-11-28 14:14:32 SMTP protocol error in "aUtH lOgIn" H=(test) [8.8.8.8]" H=(roxzgj) [192.0.2.6] AUTH command used when not advertised

## no matches with `mode = normal`:

# failJSON: { "match": false , "desc": "aggressive mode only" }
2017-12-03 08:32:00 no host name found for IP address 192.0.2.8
# failJSON: { "match": false , "desc": "aggressive mode only" }
2017-12-03 08:51:35 no IP address found for host test.example.com (during SMTP connection from [192.0.2.9])

# filterOptions: [{"mode": "aggressive"}]

# failJSON: { "time": "2017-12-03T08:32:00", "match": true , "host": "192.0.2.8", "desc": "no host found for IP" }
2017-12-03 08:32:00 no host name found for IP address 192.0.2.8
# failJSON: { "time": "2017-12-03T08:51:35", "match": true , "host": "192.0.2.9", "desc": "no IP found for host" }
2017-12-03 08:51:35 no IP address found for host test.example.com (during SMTP connection from [192.0.2.9])