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Queue Detail
namehotmail.com/pmta51-206
recipients84
kbytes2,225.2
active connections0
pausedno
modebackoff
backoff reason2026-04-04 19:39:13 "550 5.7.1 Unfortunately, messages from [51.254.4.206] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [Name=Protocol Filter Agent][AGT=PFA][MxId=11BD1EF3A1015994] [BN1PEPF00005FFD.namprd05.prod.outlook.com 2026-04-04T14:09:13.716Z 08DE8F79D4052995]" received from hotmail-com.olc.protection.outlook.com (52.101.10.19) matching /mail.live.com/mail/troubleshooting.aspx/
next retry2026-04-04 19:55:20
Last Errors
timeerror
2026-04-04 19:54:20 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:54:20 Error: "550 5.7.1 Unfortunately, messages from [51.254.4.206] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [Name=Protocol Filter Agent][AGT=PFA][MxId=11BD1EA71462B83C] [BL02EPF0001A103.namprd05.prod.outlook.com 2026-04-04T14:24:20.618Z 08DE8F538E02EA87]" while connected from pluto.streamad.in (51.254.4.206) to hotmail-com.olc.protection.outlook.com (52.101.9.13)
2026-04-04 19:54:20 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (4x)
2026-04-04 19:53:19 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:53:19 Error: "550 5.7.1 Unfortunately, messages from [51.254.4.206] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [Name=Protocol Filter Agent][AGT=PFA][MxId=11BD1EB013B81FE9] [DS3PEPF000099E2.namprd04.prod.outlook.com 2026-04-04T14:23:19.232Z 08DE8F580D9B4B4D]" while connected from pluto.streamad.in (51.254.4.206) to hotmail-com.olc.protection.outlook.com (52.101.8.35)
2026-04-04 19:53:19 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (4x)
2026-04-04 19:52:18 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:52:18 Error: "550 5.7.1 Unfortunately, messages from [51.254.4.206] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [Name=Protocol Filter Agent][AGT=PFA][MxId=11BD1E757C20FE1F] [BN1PEPF00004683.namprd03.prod.outlook.com 2026-04-04T14:22:18.378Z 08DE8F3AC21AA5E0]" while connected from pluto.streamad.in (51.254.4.206) to hotmail-com.olc.protection.outlook.com (52.101.10.3)
2026-04-04 19:52:18 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (4x)
2026-04-04 19:51:17 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
Recipient Events       (Deliveries: 2, Bounces: 48, Deferrals: 0)
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