2025-06-11 17:48:50 dovecot_login authenticator failed for ([218.206.136.24]) [218.206.136.24]:51700: 535 Incorrect authentication data (set_id=fale.conosco@doi2versos.com.br)
2025-06-11 17:49:01 dovecot_login authenticator failed for (static.ill.117.250.220.65.bsnl.co.in) [117.250.220.65]:40476: 535 Incorrect authentication data (set_id=fale.conosco)
2025-06-11 18:00:52 SMTP call from [64.225.111.78]:7155 dropped: too many unrecognized commands (last was "To: <sip:nm2@nm2>")
2025-06-11 18:01:19 SMTP call from [167.172.104.241]:29994 dropped: too many syntax or protocol errors (last command was "?", NULL)
2025-06-11 18:01:24 SMTP call from [167.172.104.241]:36068 dropped: too many syntax or protocol errors (last command was "?", NULL)
2025-06-11 18:01:39 SMTP call from [167.172.104.241]:11402 dropped: too many syntax or protocol errors (last command was "?", NULL)
2025-06-11 18:01:45 SMTP call from [167.172.104.241]:50632 dropped: too many syntax or protocol errors (last command was "?", NULL)
2025-06-11 18:01:50 SMTP call from [167.172.104.241]:50642 dropped: too many syntax or protocol errors (last command was "?/?<\300\234\300\240?\234?5?=\300\235\300\241?\235?A?\272?\204?\300?\007?\004?\005\001??\322???\023?\021??\016144.217.254.10?\027???\001?\001\001\377\001?\001??", NULL)
2025-06-11 18:01:55 SMTP call from [167.172.104.241]:16592 dropped: too many syntax or protocol errors (last command was "\300+\300\256\300\254\300#\300	\300\b?\232?\304?\210?\276?E?\237\300\243\300\237?k?9?\236\300\242\300\236?g?3?\026\001??\322???\023?\021??\016144.217.254.10?\027???\001?\001\001\377\001?\001??", NULL)
2025-06-11 18:02:00 SMTP call from [167.172.104.241]:16602 dropped: too many syntax or protocol errors (last command was "?", NULL)
2025-06-11 18:02:05 SMTP call from [167.172.104.241]:26860 dropped: too many syntax or protocol errors (last command was "?", NULL)
2025-06-11 18:07:40 SMTP call from [45.131.155.254]:39038 dropped: too many unrecognized commands (last was "Accept-Encoding: gzip")
2025-06-11 18:09:32 SMTP call from [45.131.155.254]:56698 dropped: too many unrecognized commands (last was "To: <sip:nm2@nm2>")
2025-06-11 18:09:39 H=[45.131.155.254]:47602 temporarily rejected connection in "connect" ACL: "Host is ratelimited (1.9/1h max:1.2)"
2025-06-11 18:09:45 H=[45.131.155.254]:42116 temporarily rejected connection in "connect" ACL: "Host is ratelimited (1.9/1h max:1.2)"
2025-06-11 19:28:08 dovecot_login authenticator failed for ([125.72.128.218]) [125.72.128.218]:41117: 535 Incorrect authentication data (set_id=contato@doi2versos.com.br)
2025-06-11 19:28:22 dovecot_login authenticator failed for ([196.190.43.138]) [196.190.41.137]:37422: 535 Incorrect authentication data (set_id=contato)
2025-06-11 19:35:27 dovecot_login authenticator failed for ([218.67.123.202]) [218.67.123.202]:43382: 535 Incorrect authentication data (set_id=suporte@doi2versos.com.br)
2025-06-11 19:35:44 dovecot_login authenticator failed for ([101.58.144.50]) [101.58.144.50]:33558: 535 Incorrect authentication data (set_id=suporte)
2025-06-11 21:24:19 SMTP call from [198.235.24.82]:65424 dropped: too many unrecognized commands (last was "Accept-Encoding: gzip")
2025-06-11 22:55:29 dovecot_login authenticator failed for (6.105.141.116.adsl-pool.jlccptt.net.cn) [116.141.105.6]:39502: 535 Incorrect authentication data (set_id=contato@doi2versos.com.br)
2025-06-11 22:55:37 dovecot_login authenticator failed for (host-158-247-164-253.dhcp.fewpb.net) [158.247.164.253]:51226: 535 Incorrect authentication data (set_id=contato)
2025-06-11 23:25:26 dovecot_login authenticator failed for ([62.201.228.210]) [62.201.228.210]:47238: 535 Incorrect authentication data (set_id=fale.conosco@doi2versos.com.br)
2025-06-11 23:25:38 dovecot_login authenticator failed for ([186.238.237.234]) [186.238.237.234]:53616: 535 Incorrect authentication data (set_id=fale.conosco)
2025-06-11 23:30:09 SMTP call from [198.235.24.203]:61946 dropped: too many unrecognized commands (last was "Accept-Encoding: gzip")
2025-06-12 00:13:09 dovecot_login authenticator failed for 50708de6.static.ziggozakelijk.nl [80.112.141.230]:38212: 535 Incorrect authentication data (set_id=suporte@doi2versos.com.br)
2025-06-12 00:13:27 dovecot_login authenticator failed for ([123.209.115.163]) [123.209.115.163]:46264: 535 Incorrect authentication data (set_id=suporte)
2025-06-12 02:46:10 dovecot_login authenticator failed for ([111.26.63.82]) [111.26.63.83]:49704: 535 Incorrect authentication data (set_id=fale.conosco@doi2versos.com.br)
2025-06-12 02:46:32 dovecot_login authenticator failed for ([122.225.203.106]) [122.225.203.106]:48962: 535 Incorrect authentication data (set_id=fale.conosco)
2025-06-12 03:05:39 dovecot_login authenticator failed for ns541627.ip-144-217-254.net (cloud.doi2versos.com.br) [144.217.254.10]:50504: 535 Incorrect authentication data (set_id=sistema@doi2versos.com.br)
2025-06-12 05:43:09 dovecot_login authenticator failed for ([112.25.140.211]) [112.25.140.211]:55781: 535 Incorrect authentication data (set_id=contato@doi2versos.com.br)
2025-06-12 05:43:25 dovecot_login authenticator failed for ([77.211.31.222]) [77.211.31.222]:35111: 535 Incorrect authentication data (set_id=contato)
2025-06-12 05:54:24 SMTP call from 216.150.216.162.bc.googleusercontent.com [162.216.150.216]:62054 dropped: too many unrecognized commands (last was "Accept: */*")
2025-06-12 06:19:29 dovecot_login authenticator failed for ([111.53.52.116]) [111.53.52.116]:52000: 535 Incorrect authentication data (set_id=fale.conosco@doi2versos.com.br)
2025-06-12 06:19:40 dovecot_login authenticator failed for ([118.45.101.159]) [118.45.101.159]:54227: 535 Incorrect authentication data (set_id=fale.conosco)
2025-06-12 06:33:33 H=(localhost.localdomain) [78.153.140.207]:35552 sender verify fail for <no-reply@no-reply.com>: The mail server does not recognize no-reply@no-reply.com as a valid sender.
2025-06-12 06:33:33 H=(localhost.localdomain) [78.153.140.207]:35552 X=TLS1.2:ECDHE-ECDSA-AES256-GCM-SHA384:256 CV=no F=<no-reply@no-reply.com> rejected RCPT <a@b11.siagabaja.com>: Sender verify failed
2025-06-12 08:35:41 SMTP call from prod08.academyforinternetresearch.org [172.105.102.10]:45092 dropped: too many unrecognized commands (last was "To: <sip:nm2@nm2>")
2025-06-12 09:40:47 dovecot_login authenticator failed for 91-241-150-246-dyn.neotele.com.ru [91.241.150.246]:43000: 535 Incorrect authentication data (set_id=suporte@doi2versos.com.br)
2025-06-12 09:40:59 dovecot_login authenticator failed for ([180.168.119.2]) [180.168.119.2]:52098: 535 Incorrect authentication data (set_id=suporte)
2025-06-12 10:08:32 dovecot_login authenticator failed for (localhost) [81.30.107.130]:21568: 535 Incorrect authentication data (set_id=9999999999)
2025-06-12 10:13:01 H=static-185-95-84-71.sunucuhub.com [185.95.84.71]:33502 X=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=no F=<UIzp3Ccr@startconconsulting.com.br> rejected RCPT <a@a20465007.siagabaja.com>: SMTP AUTH is required for message submission on port 465
2025-06-12 10:41:48 SMTP call from scan-70-00.shadowserver.org [65.49.1.142]:34075 dropped: too many unrecognized commands (last was "Accept: */*")
2025-06-12 13:15:34 dovecot_login authenticator failed for vps-eed33ea4.vps.ovh.net [51.38.133.48]:42812: 535 Incorrect authentication data (set_id=contato@doi2versos.com.br)
2025-06-12 13:15:52 dovecot_login authenticator failed for (37x113x90x65.dynamic.yar.ertelecom.ru) [37.113.90.65]:57402: 535 Incorrect authentication data (set_id=contato)
2025-06-12 13:23:02 dovecot_login authenticator failed for ([111.39.212.68]) [111.39.212.68]:34561: 535 Incorrect authentication data (set_id=suporte@doi2versos.com.br)
2025-06-12 13:23:19 dovecot_login authenticator failed for h-176-10-197-168.a444.priv.bahnhof.se [176.10.197.168]:53952: 535 Incorrect authentication data (set_id=suporte)
2025-06-12 14:21:32 SMTP call from [165.154.36.91]:12052 dropped: too many syntax or protocol errors (last command was "\300\024?\234?\235?/?5\300\022?", NULL)
2025-06-12 14:21:40 SMTP call from [165.154.36.91]:12314 dropped: too many syntax or protocol errors (last command was "\023\001\023\002\023\003\001??\177?\v?\002\001?\377\001?\001??\027???\022???\005?\005\001?????", NULL)
2025-06-12 14:21:48 SMTP call from [165.154.36.91]:12902 dropped: too many unrecognized commands (last was "")
2025-06-12 14:34:23 SMTP call from [147.185.132.184]:61576 dropped: too many unrecognized commands (last was "Accept: */*")
2025-06-12 15:41:40 dovecot_login authenticator failed for (abts-north-static-194.142.160.122.airtelbroadband.in) [122.160.142.194]:54886: 535 Incorrect authentication data (set_id=contato@doi2versos.com.br)
2025-06-12 15:41:56 dovecot_login authenticator failed for ip-4acf.sunline.net.ua [94.45.74.207]:56042: 535 Incorrect authentication data (set_id=contato)
2025-06-12 16:17:17 dovecot_login authenticator failed for ([39.164.94.190]) [39.164.94.190]:45210: 535 Incorrect authentication data (set_id=fale.conosco@doi2versos.com.br)
2025-06-12 16:17:34 dovecot_login authenticator failed for ([20.46.45.121]) [20.46.45.121]:51946: 535 Incorrect authentication data (set_id=fale.conosco)
