PowerMTA™ 3.5r16 

Top 10 domains by number of recipients

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Name #Rcpt KBytes #Conn Last Error
upsend.com 9,717 71,265.8 0 2025-09-03 09:56:03 StatusDnsQueryFailed resolving domain
gmail.com 302 2,456.0 0 2025-09-03 10:00:10 Timed out while connecting from server1.wifpp.cn (10.0.0.214) to alt4.gmail-smtp-in.l.google.com (142.251.190.27)
comcast.net 130 1,046.7 0 2025-09-03 09:53:27 Error: connection closed by the remote host while connected from server1.wifpp.cn (10.0.0.214) to mx2c1.comcast.net (96.102.18.146)
libero.it 57 408.5 4 2025-09-03 09:52:18 Timed out while connecting from server1.wifpp.cn (10.0.0.214) to smtp-in.libero.it (213.209.1.129)
us.army.mil 34 183.0 0 2025-09-03 09:59:20 StatusDnsQueryFailed resolving domain
charter.net 22 139.0 0 2025-09-03 09:58:20 Connection attempt failed, status = ECONNREFUSED while connecting from server1.wifpp.cn (10.0.0.214) to mx0.charter.net (47.43.18.9)
eircom.net 18 140.2 0 2025-09-03 09:53:54 SMTP service unavailable: "421 eir-ibgw-7002a.ext.cloudfilter.net cmsmtp 49.65.99.196 blocked AUP#DNS" received from eir-07.mx.a.cloudfilter.net (34.248.58.33) while connected from server1.wifpp.cn (10.0.0.214) to eir-07.mx.a.cloudfilter.net (34.248.58.33)
seznam.cz 17 106.7 0 2025-09-03 09:58:39 Maximum of 10 recipient errors detected; disconnecting while connected from server1.wifpp.cn (10.0.0.214:50440) to mx2.seznam.cz (77.75.77.42)
free.fr 15 130.9 0 2025-09-03 09:54:35 SMTP protocol failure: syntax error: 3-digit code not found; The IP 49.65.99.196 is blacklisted on Spamhaus PBL by mx2.free.fr (212.27.42.59) while connected from server1.wifpp.cn (10.0.0.214) to mx2.free.fr (212.27.42.59)
navy.mil 15 96.5 0 2025-09-03 09:58:53 StatusDnsQueryFailed resolving domain

10 of 2648 domains.

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