This IP address has been reported a total of
3
times from
2 distinct
sources.
66.91.77.63 was first reported on
October 26th 2026 , and the most recent report was
1 hour ago Italy
with 2
reports;
France
with 1
report.
The only category in these recent reports was:
Brute-Force
3
times.
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.
Reporter
IoA Timestamp (UTC)
Comment
Categories
🇮🇹
CoreTech srl
2026-10-26 16:52:33
(1 hour ago)
"SMTP Login failed": count(IP)=34.0Smartermail 17:48:26.594 [66.91.77.63] SMTP Login failed: Usernam ...
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"SMTP Login failed": count(IP)=34.0Smartermail 17:48:26.594 [66.91.77.63] SMTP Login failed: Username or password is incorrect.Smartermail 17:48:26.594 [66.91.77.63] SMTP Login failed: Domain [gsm-italia.it] not foundSmartermail 17:48:32.540 [175.205.86.82] SMTP Login failed: Username or password is incorrect.Smartermail 17:48:32.540 [175.205.86.82] SMTP Login failed: Incorrect email address [dperna]Smartermail 17:48:53.981 [184.190.234.186] SMTP Login failed: Username or password is incorrect.Smartermail 17:48:53.981 [184.190.234.186] SMTP Login failed: Domain [midifendo.it] not foundSmartermail 17:48:58.541 [70.167.233.134] SMTP Login failed: Username or password is incorrect.Smartermail 17:48:58.541 [70.167.233.134] SMTP Login failed: Incorrect email address [clienti.amazon]Smartermail 17:49:41.183 [116.231.243.161] SMTP Login failed: Domain [vivariniauto.com] not found
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Brute-Force
🇫🇷
GabrielJST
2026-10-26 15:55:55
(2 hours ago)
(smtpauth) Failed SMTP AUTH login from 66.91.77.63 (US/United States/syn-066-091-077-063.res.spectru ...
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(smtpauth) Failed SMTP AUTH login from 66.91.77.63 (US/United States/syn-066-091-077-063.res.spectrum.com)
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Brute-Force
🇮🇹
CoreTech srl
2026-10-26 07:22:33
(11 hours ago)
"SMTP Login failed": count(IP)=10.0Smartermail 08:17:42.618 [66.91.77.63] SMTP Login failed: Usernam ...
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"SMTP Login failed": count(IP)=10.0Smartermail 08:17:42.618 [66.91.77.63] SMTP Login failed: Username or password is incorrect.Smartermail 08:17:42.618 [66.91.77.63] SMTP Login failed: Domain [serfre.com] not foundSmartermail 08:17:50.237 [118.210.30.247] SMTP Login failed: Incorrect email address [arts]Smartermail 08:17:50.237 [118.210.30.247] SMTP Login failed: Username or password is incorrect.Smartermail 08:18:13.551 [181.62.2.57] SMTP Login failed: Username or password is incorrect.Smartermail 08:18:13.551 [181.62.2.57] SMTP Login failed: Domain [laffon.it] not foundSmartermail 08:18:17.907 [103.55.144.78] SMTP Login failed: Incorrect email address [48888777]Smartermail 08:18:17.907 [103.55.144.78] SMTP Login failed: Username or password is incorrect.Smartermail 08:18:37.923 [70.183.235.198] SMTP Login failed: Domain [studiolegaleamenduni.it] not found
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Brute-Force
Showing 1 to
3
of 3 reports
