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AbuseIPDB » 107.172.39.17

107.172.39.17 was found in our database!

This IP was reported 50 times. Confidence of Abuse is 31%: ?

31%

ISP	RackNerd LLC
Usage Type	Data Center/Web Hosting/Transit
ASN	AS36352
Hostname(s)	k1.postlounge.co.nz
Domain Name	racknerd.com
Country	🇺🇸 United States of America
City	Buffalo, New York

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Report 107.172.39.17

Whois 107.172.39.17

IP Abuse Reports for 107.172.39.17:

This IP address has been reported a total of 50 times from 17 distinct sources. 107.172.39.17 was first reported on May 2nd 2026, and the most recent report was 1 month ago.

Old Reports: The most recent abuse report for this IP address is from 1 month ago . It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
Anonymous	2026-05-31 22:39:15 (1 month ago)	2026-05-31T23:39:09.093276+01:00 parsel.zopatista.com postfix/submission/smtpd[105833]: NOQUEUE: rej ... show more 2026-05-31T23:39:09.093276+01:00 parsel.zopatista.com postfix/submission/smtpd[105833]: NOQUEUE: reject: RCPT from unknown[107.172.39.17]: 554 5.7.1 <unknown[107.172.39.17]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<PRtxoRf07x> 2026-05-31T23:39:14.307633+01:00 parsel.zopatista.com postfix/submission/smtpd[105833]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=mj ... show less	Brute-Force
🇩🇪 grassau.com	2026-05-30 02:40:19 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/New York/Buffalo/k1.postloung ... show more (smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/New York/Buffalo/k1.postlounge.co.nz) show less	Brute-Force
🇹🇷 ferique	2026-05-28 17:45:10 (1 month ago)	Real-time Intercept: SMTP attack. Reference: 2026-05-28 20:45:07.8346 Login failure: 107.172.39.17 S ... show more Real-time Intercept: SMTP attack. Reference: 2026-05-28 20:45:07.8346 Login failure: 107.172.39.17 SMTP 2 show less	Brute-Force Email Spam
🇺🇸 xmission.com	2026-05-26 03:43:47 (1 month ago)	Blocked by UFW (TCP on 587) Source port: 56903 TTL: 115 Packet length: 52 TOS: 0x0A This report (fo ... show more Blocked by UFW (TCP on 587) Source port: 56903 TTL: 115 Packet length: 52 TOS: 0x0A This report (for 107.172.39.17) was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇺🇸 bigscoots.com	2026-05-26 02:10:30 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/k1.postlounge.co.nz): 5 in th ... show more (smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/k1.postlounge.co.nz): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-05-25 22:09:35 dovecot_login authenticator failed for H=(SnSy8i) [107.172.39.17]:59865: 535 Incorrect authentication data (set_id=jim) 2026-05-25 22:09:41 dovecot_login authenticator failed for H=(HvZ9VPkLb) [107.172.39.17]:51463: 535 Incorrect authentication data (set_id=jim) 2026-05-25 22:09:51 dovecot_login authenticator failed for H=(8cN4bwvyK) [107.172.39.17]:56631: 535 Incorrect authentication data (set_id=jim) 2026-05-25 22:10:08 dovecot_login authenticator failed for H=(4t3KZ2ehts) [107.172.39.17]:64931: 535 Incorrect authentication data (set_id=jim) 2026-05-25 22:10:25 dovecot_login authenticator failed for H=(5JbuIWMC) [107.172.39.17]:61300: 535 Incorrect authentication data (set_id=jim) show less	Brute-Force SSH
🇷🇴 ICT	2026-05-24 09:53:19 (1 month ago)	May 24 12:53:05 acad-icht postfix/smtpd[54013]: NOQUEUE: reject: RCPT from unknown[107.172.39.17]: 5 ... show more May 24 12:53:05 acad-icht postfix/smtpd[54013]: NOQUEUE: reject: RCPT from unknown[107.172.39.17]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<fviFA0amc> May 24 12:53:09 acad-icht postfix/smtpd[54013]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure May 24 12:53:12 acad-icht postfix/smtpd[54013]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure May 24 12:53:16 acad-icht postfix/smtpd[54013]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure May 24 12:53:19 acad-icht postfix/smtpd[54013]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure ... show less	Brute-Force
🇨🇿 lp	2026-05-23 12:20:23 (1 month ago)	Email account brute force: 5 attempts were recorded from 107.172.39.17 2026-05-23T13:16:02+02:00 war ... show more Email account brute force: 5 attempts were recorded from 107.172.39.17 2026-05-23T13:16:02+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T13:16:03+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T13:16:04+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T13:16:06+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T13:16:07+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇫🇷 UM3	2026-05-23 10:55:22 (1 month ago)	Exim Auth Failed	Brute-Force
🇨🇿 lp	2026-05-23 04:55:58 (1 month ago)	Email account brute force: 11 attempts were recorded from 107.172.39.17 2026-05-23T05:11:16+02:00 wa ... show more Email account brute force: 11 attempts were recorded from 107.172.39.17 2026-05-23T05:11:16+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T05:11:16+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T05:11:17+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T05:11:18+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T05:11:19+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-23T05:11:19+02:00 warning: unknown[107.172. show less	Brute-Force
🇷🇴 ICT	2026-05-23 01:35:03 (1 month ago)	May 23 04:34:49 acad-icht postfix/smtpd[33428]: NOQUEUE: reject: RCPT from unknown[107.172.39.17]: 5 ... show more May 23 04:34:49 acad-icht postfix/smtpd[33428]: NOQUEUE: reject: RCPT from unknown[107.172.39.17]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<5Q4vM1> May 23 04:34:53 acad-icht postfix/smtpd[33428]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure May 23 04:34:56 acad-icht postfix/smtpd[33428]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure May 23 04:34:59 acad-icht postfix/smtpd[33428]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure May 23 04:35:02 acad-icht postfix/smtpd[33428]: warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure ... show less	Brute-Force
Anonymous	2026-05-22 18:03:01 (1 month ago)	Authentication failure	Brute-Force
🇨🇿 lp	2026-05-22 15:20:12 (1 month ago)	Email account brute force: 10 attempts were recorded from 107.172.39.17 2026-05-22T16:11:34+02:00 wa ... show more Email account brute force: 10 attempts were recorded from 107.172.39.17 2026-05-22T16:11:34+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T16:11:35+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T16:11:36+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T16:11:37+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T16:11:39+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T17:03:16+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication fai show less	Brute-Force
🇧🇷 SvrAdmin	2026-05-22 11:10:16 (1 month ago)	[101] (smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/k1.postlounge.co.nz): 5 ... show more [101] (smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/k1.postlounge.co.nz): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-05-22 08:09:21 dovecot_login authenticator failed for H=(7XKgciKBW) [107.172.39.17]:59820: 535 Incorrect authentication data (set_id=luzealegria) 2026-05-22 08:09:28 dovecot_login authenticator failed for H=(9Df5mR9tl) [107.172.39.17]:61189: 535 Incorrect authentication data (set_id=luzealegria) 2026-05-22 08:09:39 dovecot_login authenticator failed for H=(r648661aV) [107.172.39.17]:64279: 535 Incorrect authentication data (set_id=luzealegria) 2026-05-22 08:09:57 dovecot_login authenticator failed for H=(UNPf7H7) [107.172.39.17]:53654: 535 Incorrect authentication data (set_id=luzealegria) 2026-05-22 08:10:15 dovecot_login authenticator failed for H=(5oCEe8TlW) [107.172.39.17]:64575: 535 Incorrect authentication data (set_id=luzealegria) show less	Port Scan Hacking Brute-Force Exploited Host
🇺🇸 bigscoots.com	2026-05-22 08:16:07 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/k1.postlounge.co.nz): 5 in th ... show more (smtpauth) Failed SMTP AUTH login from 107.172.39.17 (US/United States/k1.postlounge.co.nz): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-05-22 04:15:14 dovecot_login authenticator failed for H=(jEWtopOA1) [107.172.39.17]:51873: 535 Incorrect authentication data (set_id=homes) 2026-05-22 04:15:20 dovecot_login authenticator failed for H=(e4CHLReN) [107.172.39.17]:52420: 535 Incorrect authentication data (set_id=homes) 2026-05-22 04:15:30 dovecot_login authenticator failed for H=(WCIH1Sns) [107.172.39.17]:53767: 535 Incorrect authentication data (set_id=homes) 2026-05-22 04:15:47 dovecot_login authenticator failed for H=(htG7YFWqD) [107.172.39.17]:56491: 535 Incorrect authentication data (set_id=homes) 2026-05-22 04:16:04 dovecot_login authenticator failed for H=(7xhYDPrpWS) [107.172.39.17]:61160: 535 Incorrect authentication data (set_id=homes) show less	Brute-Force SSH
🇨🇿 lp	2026-05-22 00:20:13 (1 month ago)	Email account brute force: 5 attempts were recorded from 107.172.39.17 2026-05-22T01:26:50+02:00 war ... show more Email account brute force: 5 attempts were recorded from 107.172.39.17 2026-05-22T01:26:50+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T01:26:52+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T01:26:53+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T01:26:54+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-05-22T01:26:55+02:00 warning: unknown[107.172.39.17]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force

Showing 1 to 15 of 50 reports

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