This IP address has been reported a total of
2,426
times from
270 distinct
sources.
59.37.13.66 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.
Jan 16 14:56:11 mail postfix/submission/smtpd[3360909]: warning: unknown[59.37.13.66]: SASL LOGIN au ...
show moreJan 16 14:56:11 mail postfix/submission/smtpd[3360909]: warning: unknown[59.37.13.66]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jan 16 14:56:12 mail postfix/submission/smtpd[3360909]: lost connection after AUTH from unknown[59.37.13.66]
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Jan 16 00:01:19 mail postfix/smtpd[2262273]: warning: unknown[59.37.13.66]: SASL LOGIN authenticatio ...
show moreJan 16 00:01:19 mail postfix/smtpd[2262273]: warning: unknown[59.37.13.66]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=zayka
Jan 16 16:53:53 mail postfix/smtpd[2310505]: warning: unknown[59.37.13.66]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
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Brute-Force
Anonymous
2026-01-16 15:29:17.206 [1631510] no host name found for IP address 59.37.13.66
2026-01-16 15:29:33. ...
show more2026-01-16 15:29:17.206 [1631510] no host name found for IP address 59.37.13.66
2026-01-16 15:29:33.397 [1631510] dovecot_login authenticator failed for ([59.37.13.66]) [59.37.13.66]:33970 I=[217.197.86.168]:25 Ci=1631510: 535 Incorrect authentication data
2026-01-16 15:29:35.302 [1631510] no MAIL in SMTP connection from ([59.37.13.66]) [59.37.13.66]:33970 I=[217.197.86.168]:25 Ci=1631510 D=22s X=TLS1.2:ECDHE_SECP256R1__ECDSA_SHA512__AES_256_GCM:256 CV=no C=EHLO,STARTTLS,EHLO,AUTH
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Jan 16 13:22:09 mail postfix/submission/smtpd[3343322]: warning: unknown[59.37.13.66]: SASL LOGIN au ...
show moreJan 16 13:22:09 mail postfix/submission/smtpd[3343322]: warning: unknown[59.37.13.66]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jan 16 13:22:10 mail postfix/submission/smtpd[3343322]: lost connection after AUTH from unknown[59.37.13.66]
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Jan 16 13:18:08 main postfix/smtpd[2995841]: warning: unknown[59.37.13.66]: SASL LOGIN authenticatio ...
show moreJan 16 13:18:08 main postfix/smtpd[2995841]: warning: unknown[59.37.13.66]: SASL LOGIN authentication failed: authentication failure, sasl_username=helpdesk
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