Dec 2 21:10:26 mail postfix/submission/smtpd\[6652\]: warning: unknown\[31.6.50.91\]: SASL LOGIN au ...
show moreDec 2 21:10:26 mail postfix/submission/smtpd\[6652\]: warning: unknown\[31.6.50.91\]: SASL LOGIN authentication failed: authentication failureDec 2 21:10:28 mail postfix/submission/smtpd\[6652\]: warning: unknown\[31.6.50.91\]: SASL LOGIN authentication failed: authentication failureDec 2 21:10:30 mail postfix/submission/smtpd\[6652\]: warning: unknown\[31.6.50.91\]: SASL LOGIN authentication failed: authentication failure
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Hacking
Brute-Force
Anonymous
(PERMBLOCK) 31.6.50.91 (DK/Denmark/-) has had more than 4 temp blocks in the last 86400 secs; IP: 31 ...
show more(PERMBLOCK) 31.6.50.91 (DK/Denmark/-) has had more than 4 temp blocks in the last 86400 secs; IP: 31.6.50.91; Ports: *; Direction: 1; Trigger: LF_PERMBLOCK_COUNT; Logs:
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Email Spam
Brute-Force
Anonymous
Cluster member 10.170.91.37 (-) said, TEMPDENY 31.6.50.91, Reason:[(zimbra-mta) Failed login from 31 ...
show moreCluster member 10.170.91.37 (-) said, TEMPDENY 31.6.50.91, Reason:[(zimbra-mta) Failed login from 31.6.50.91 (DK/Denmark/-): 30 in the last 3600 secs]; IP: 31.6.50.91; Ports: *; Direction: 0; Trigger: LF_CLUSTER; Logs:
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Email Spam
Brute-Force
Anonymous
2024-12-02T17:42:53.355208+00:00 mail postfix/smtpd[1719650]: warning: unknown[31.6.50.91]: SASL LOG ...
show more2024-12-02T17:42:53.355208+00:00 mail postfix/smtpd[1719650]: warning: unknown[31.6.50.91]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
2024-12-02T17:42:53.374620+00:00 mail postfix/smtpd[1719650]: lost connection after AUTH from unknown[31.6.50.91]
2024-12-02T17:42:59.125110+00:00 mail postfix/smtpd[1719653]: warning: unknown[31.6.50.91]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
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Email Spam
Brute-Force
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
[199] (smtpauth) Failed SMTP AUTH login from 31.6.50.91 (SA/Saudi Arabia/-): 5 in the last 3600 secs ...
show more[199] (smtpauth) Failed SMTP AUTH login from 31.6.50.91 (SA/Saudi Arabia/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2024-11-22 08:23:12 dovecot_login authenticator failed for (LcQdXm) [31.6.50.91]:55160: 535 Incorrect authentication data ([email protected])
2024-11-22 08:26:01 dovecot_login authenticator failed for (cGDfAa2Bh) [31.6.50.91]:60394: 535 Incorrect authentication data ([email protected])
2024-11-22 08:27:08 dovecot_login authenticator failed for (hpN4QvV8) [31.6.50.91]:59372: 535 Incorrect authentication data ([email protected])
2024-11-22 08:51:13 dovecot_login authenticator failed for (Pg21cDH) [31.6.50.91]:63044: 535 Incorrect authentication data ([email protected])
2024-11-22 08:53:03 dovecot_login authenticator failed for (cniDaG95) [31.6.50.91]:59857: 535 Incorrect authentication data ([email protected])
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Port Scan
Hacking
Brute-Force
Exploited Host
Anonymous
2024-11-22T03:22:54.162796+00:00 mail postfix/submission/smtpd[1567037]: NOQUEUE: reject: RCPT from ...
show more2024-11-22T03:22:54.162796+00:00 mail postfix/submission/smtpd[1567037]: NOQUEUE: reject: RCPT from unknown[31.6.50.91]: 554 5.7.1 <unknown[31.6.50.91]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<oa0FVd>
2024-11-22T03:22:56.396830+00:00 mail postfix/submission/smtpd[1567037]: warning: unknown[31.6.50.91]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
2024-11-22T03:22:56.415609+00:00 mail postfix/submission/smtpd[1567037]: lost connection after AUTH from unknown[31.6.50.91]
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Email Spam
Brute-Force
Anonymous
Cluster member 10.170.91.37 (-) said, TEMPDENY 31.6.50.91, Reason:[(zimbra-mta) Failed login from 31 ...
show moreCluster member 10.170.91.37 (-) said, TEMPDENY 31.6.50.91, Reason:[(zimbra-mta) Failed login from 31.6.50.91 (DK/Denmark/-): 30 in the last 3600 secs]; IP: 31.6.50.91; Ports: *; Direction: 0; Trigger: LF_CLUSTER; Logs:
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Nov 21 13:07:43 mail postfix/smtpd\[39803\]: NOQUEUE: reject: RCPT from unknown\[31.6.50.91\]: 554 5 ...
show moreNov 21 13:07:43 mail postfix/smtpd\[39803\]: NOQUEUE: reject: RCPT from unknown\[31.6.50.91\]: 554 5.7.1 \<[email protected]\>: Relay access denied\; from=\<[email protected]\> to=\<[email protected]\> proto=ESMTP helo=\<kznzRIn\>
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