PowerMTA™ 3.5r16 

Top 10 domains by number of recipients

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Name #Rcpt KBytes #Conn Last Error
dhl-cargo.cn 1,396 34,806.9 0 2025-07-02 20:36:08 StatusDnsLoopDetected resolving domain
fastmail.fm 576 14,263.2 0 2025-07-02 16:20:13 SMTP service unavailable: "421 Client host [117.88.100.175] blocked using internal list; Too many unknown addresses, probable dictionary harvest attack. Expected removal in 6.1 hours" received from in2-smtp.messagingengine.com (202.12.124.217) while connected from server1.dhl-cargo.cn (10.0.0.117) to in2-smtp.messagingengine.com (202.12.124.217)
fastmail.us 533 13,198.3 0 2025-07-02 16:57:13 SMTP service unavailable: "421 Client host [117.88.100.175] blocked using internal list; Too many unknown addresses, probable dictionary harvest attack. Expected removal in 6.1 hours" received from in2-smtp.messagingengine.com (202.12.124.217) while connected from server1.dhl-cargo.cn (10.0.0.117) to in2-smtp.messagingengine.com (202.12.124.217)
myway.com 526 13,024.0 0 2025-07-02 20:59:22 Timed out while connecting from server1.dhl-cargo.cn (10.0.0.117) to myway.com (151.101.78.114)
fastmail.es 509 12,604.0 0 2025-07-02 17:52:37 SMTP service unavailable: "421 Client host [117.88.100.175] blocked using internal list; Too many unknown addresses, probable dictionary harvest attack. Expected removal in 5.1 hours" received from in2-smtp.messagingengine.com (202.12.124.217) while connected from server1.dhl-cargo.cn (10.0.0.117) to in2-smtp.messagingengine.com (202.12.124.217)
rediffmail.com 330 8,174.2 0 2025-07-02 16:48:22 Timed out while connecting from server1.dhl-cargo.cn (10.0.0.117) to mx.rediffmail.rediff.akadns.net (202.137.234.30)
globalsources.com 140 3,704.4 0 2025-07-02 20:52:38 SMTP service unavailable: "450 Requested action aborted [7.1] 90306, please visit https://knowledge.broadcom.com/external/article?legacyId=TECH246726 for more details about this error message." received from cluster6.us.messagelabs.com (67.219.246.217) while connected from server1.dhl-cargo.cn (10.0.0.117) to cluster6.us.messagelabs.com (67.219.246.217)
18show.cn 136 3,367.7 0 2025-07-02 16:43:56 Error: connection closed by the remote host while connected from server1.dhl-cargo.cn (10.0.0.117) to mxbiz2.qq.com (42.194.253.68)
gmail.com 133 3,374.5 1 2025-07-02 21:03:25 Error: connection closed by the remote host while connected from server1.dhl-cargo.cn (10.0.0.117:39906) to alt1.gmail-smtp-in.l.google.com (192.178.164.26)
vsnl.com 132 3,386.8 0 2025-07-02 15:49:50 Timed out while connecting from server1.dhl-cargo.cn (10.0.0.117) to vsnl.com (104.21.33.183)

10 of 87569 domains.

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