This IP address has been reported a total of
17
times from
16 distinct
sources.
5.11.83.66 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
United States of America
with 6
reports;
Germany
with 2
reports;
Spain
with 2
reports.
The most common categories in these recent reports were:
Email Spam
13
times;
Brute-Force
7
times;
Port Scan
3
times;
Spoofing
2
times;
Exploited Host
2
times;
Other
4
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.
Blocked 74 connection attempts due to Spamhaus RBL (RJCT05) in the past 4 hours. To request delistin ...
show moreBlocked 74 connection attempts due to Spamhaus RBL (RJCT05) in the past 4 hours. To request delisting, visit https://www.spamhaus.org/lookup/ to check your IP status and submit a delist request if eligible.
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2026-10-11T02:03:34.891765+01:00 dlcentre3 postfix/smtpd[3625709]: NOQUEUE: reject: RCPT from unknow ...
show more2026-10-11T02:03:34.891765+01:00 dlcentre3 postfix/smtpd[3625709]: NOQUEUE: reject: RCPT from unknown[5.11.83.66]: 554 5.7.1 Service unavailable; Client host [5.11.83.66] blocked using sbl-xbl.spamhaus.org; Listed by CSS, see https://check.spamhaus.org/query/ip/5.11.83.66; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.golddeltaav.com>
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Observed two unsolicited spam emails originating from IP address 5.11.83.66 on October 11, 2026, at ...
show moreObserved two unsolicited spam emails originating from IP address 5.11.83.66 on October 11, 2026, at 01:14:58 and 03:01:23 CEST (UTC+2).
Both messages used the sending domain golddeltaav.com and impersonated Harbor Freight and AAA, promoting misleading complimentary product offers.
The emails share distinctive indicators with a broader ongoing spam campaign, including similar promotional templates, the same physical mailing address (30 N Gould St., Ste N, Sheridan, WY 82801), and an identical tracking pixel identifier.
The source IP was identified from SMTP Received headers added by the receiving mail infrastructure.
An abuse report containing both original email messages and complete SMTP headers was submitted to [email protected] on October 11, 2026
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(RCPT) RCPT NOT ALLOWED FROM 5.11.83.66 (66.0/24.83.11.5.in-addr.arpa): 1 in the last 3600 secs; Po ...
show more(RCPT) RCPT NOT ALLOWED FROM 5.11.83.66 (66.0/24.83.11.5.in-addr.arpa): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs: 2026-10-10 17:29:41 H=(mail.golddeltaav.com) [5.11.83.66] F=<[email protected]> rejected RCPT <[email protected]>: Email blocked by bl.spamcop.net (127.0.0.2)
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2026-10-11T00:17:14.143337+01:00 dlcentre3 postfix/smtpd[3600168]: NOQUEUE: reject: RCPT from unknow ...
show more2026-10-11T00:17:14.143337+01:00 dlcentre3 postfix/smtpd[3600168]: NOQUEUE: reject: RCPT from unknown[5.11.83.66]: 554 5.7.1 Service unavailable; Client host [5.11.83.66] blocked using sbl-xbl.spamhaus.org; Listed by CSS, see https://check.spamhaus.org/query/ip/5.11.83.66; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.golddeltaav.com>
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