Email spam abuse incident from 52.224.108.8 (smtpout17.sonicleads.io)

Posted October 30, 2020 07:40 by abuse

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The following Email spam abuse incident from 52.224.108.8 (smtpout17.sonicleads.io) was logged at 2020-10-30 07:39:59:

Oct 30 07:39:59 mailman postfix/smtpd[10924]: NOQUEUE: reject: RCPT from
smtpout17.sonicleads.io[52.224.108.8]: 554 5.7.1 Service unavailable; Client
host [52.224.108.8] blocked using blackholes.tepucom.nl; Blacklisted by Tepucom
RBL (abuse[at]abuse.tepucom.nl) [52.224.108.8/32] [Host reputation too low /
spam risk too high (domain hit) [strike 5 : 90 day minimum] [at][at]1601635012];
from=<postmaster[at]sonicleads.io>
to=<mailbox.unknown.1604061592897[at][munged]> proto=ESMTP
helo=<smtpout17.sonicleads.io>
Oct 30 07:39:59 mailman postfix/smtpd[10924]: NOQUEUE: reject: RCPT from
smtpout17.sonicleads.io[52.224.108.8]: 554 5.7.1 Service unavailable; Client
host [52.224.108.8] blocked using blackholes.tepucom.nl; Blacklisted by Tepucom
RBL (abuse[at]abuse.tepucom.nl) [52.224.108.8/32] [Host reputation too low /
spam risk too high (domain hit) [strike 5 : 90 day minimum] [at][at]1601635012];
from=<postmaster[at]sonicleads.io> to=<[munged][at][munged]> proto=ESMTP
helo=<smtpout17.sonicleads.io>

Worst offender ASNs

🚽 AS4134 (19,645 events)

🚽 AS4837 (3,727 events)

🚽 AS45899 (3,329 events)

🚽 AS28202 (3,182 events)

🚽 AS14061 (2,567 events)

🚽 AS16276 (1,935 events)

🚽 AS8075 (1,744 events)

🚽 AS12389 (1,342 events)

🚽 AS4766 (1,192 events)

🚽 AS9808 (1,110 events)

Worst offender IPs

💩 78.128.113.87 (46 events)

💩 80.66.81.143 (43 events)

💩 51.254.47.198 (35 events)

💩 145.249.105.210 (34 events)

💩 218.4.239.146 (33 events)

💩 58.57.4.238 (31 events)

💩 5.101.40.81 (30 events)

💩 189.254.33.157 (30 events)

💩 188.166.216.84 (29 events)

💩 103.207.37.40 (28 events)