This IP address has been reported a total of 5,256
times from 209 distinct
sources.
81.30.107.104 was first reported on ,
and the most recent report was .
Recent Reports:
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
2025-04-21T08:05:20.085121-06:00 mail postfix/smtps/smtpd[1701664]: warning: unknown[81.30.107.104]: ... show more2025-04-21T08:05:20.085121-06:00 mail postfix/smtps/smtpd[1701664]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=kaikeika
2025-04-21T08:05:22.667627-06:00 mail postfix/smtps/smtpd[1701664]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T08:29:35.268814-06:00 mail postfix/smtps/smtpd[1704507]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=naresh
2025-04-21T08:29:38.382127-06:00 mail postfix/smtps/smtpd[1704507]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T08:54:32.448832-06:00 mail postfix/smtps/smtpd[1708437]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=tsuyuguchi show less
Brute-Force
Anonymous
2025-04-21T15:36:37.000577+02:00 mail postfix/smtps/smtpd[109527]: warning: unknown[81.30.107.104]: ... show more2025-04-21T15:36:37.000577+02:00 mail postfix/smtps/smtpd[109527]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=perk
2025-04-21T15:36:37.250090+02:00 mail postfix/smtps/smtpd[109527]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T15:59:12.283170+02:00 mail postfix/smtps/smtpd[110461]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=kaikeika
2025-04-21T15:59:12.477684+02:00 mail postfix/smtps/smtpd[110461]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T16:23:35.435056+02:00 mail postfix/smtps/smtpd[110935]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=naresh
... show less
2025-04-21T06:17:16.295516-06:00 mail postfix/smtps/smtpd[1683445]: warning: unknown[81.30.107.104]: ... show more2025-04-21T06:17:16.295516-06:00 mail postfix/smtps/smtpd[1683445]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=s138
2025-04-21T06:17:18.544269-06:00 mail postfix/smtps/smtpd[1683445]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T06:39:56.085566-06:00 mail postfix/smtps/smtpd[1688873]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=elc
2025-04-21T06:39:59.963918-06:00 mail postfix/smtps/smtpd[1688873]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T07:00:43.440436-06:00 mail postfix/smtps/smtpd[1689282]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=naomi show less
2025-04-21T12:43:49.986381ls1.tom2.co.uk postfix/smtps/smtpd[26750]: warning: unknown[81.30.107.104] ... show more2025-04-21T12:43:49.986381ls1.tom2.co.uk postfix/smtps/smtpd[26750]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: authentication failure
... show less
Email SpamBrute-Force
Anonymous
2025-04-21T13:47:55.067121+02:00 mail postfix/smtps/smtpd[104259]: warning: unknown[81.30.107.104]: ... show more2025-04-21T13:47:55.067121+02:00 mail postfix/smtps/smtpd[104259]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=plot
2025-04-21T13:47:55.262532+02:00 mail postfix/smtps/smtpd[104259]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T14:11:28.171086+02:00 mail postfix/smtps/smtpd[105464]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=s138
2025-04-21T14:11:28.410082+02:00 mail postfix/smtps/smtpd[105464]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T14:34:09.219173+02:00 mail postfix/smtps/smtpd[106322]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=elc
... show less
2025-04-21T04:25:45.037650-06:00 mail postfix/smtps/smtpd[1671581]: warning: unknown[81.30.107.104]: ... show more2025-04-21T04:25:45.037650-06:00 mail postfix/smtps/smtpd[1671581]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=pepa
2025-04-21T04:25:47.747927-06:00 mail postfix/smtps/smtpd[1671581]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T04:47:54.295378-06:00 mail postfix/smtps/smtpd[1673961]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=projector
2025-04-21T04:47:56.954483-06:00 mail postfix/smtps/smtpd[1673961]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T05:11:36.279155-06:00 mail postfix/smtps/smtpd[1676982]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=quynh show less
Apr 21 12:03:19 mail postfix/smtps/smtpd[375561]: warning: unknown[81.30.107.104]: SASL LOGIN authen ... show moreApr 21 12:03:19 mail postfix/smtps/smtpd[375561]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 21 12:25:06 mail postfix/smtps/smtpd[381384]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 21 12:47:11 mail postfix/smtps/smtpd[381388]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
... show less
Brute-ForceSSH
Anonymous
2025-04-21T11:58:27.012620+02:00 mail postfix/smtps/smtpd[98213]: warning: unknown[81.30.107.104]: S ... show more2025-04-21T11:58:27.012620+02:00 mail postfix/smtps/smtpd[98213]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=photos6
2025-04-21T11:58:27.210750+02:00 mail postfix/smtps/smtpd[98213]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T12:21:18.107544+02:00 mail postfix/smtps/smtpd[99355]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=pepa
2025-04-21T12:21:18.713668+02:00 mail postfix/smtps/smtpd[99355]: lost connection after AUTH from unknown[81.30.107.104]
2025-04-21T12:42:05.227654+02:00 mail postfix/smtps/smtpd[100862]: warning: unknown[81.30.107.104]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=projector
... show less