PowerMTA™ 4.5r1 
mta.streamad.in 

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Queue Detail
namehotmail.com/pmta178-204
recipients90
kbytes2,383.9
active connections0
pausedno
modebackoff
backoff reason2026-04-04 19:01:07 "550 5.7.1 Unfortunately, messages from [178.33.53.204] 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=11BD1EFDE7CC1380] [DU6PEPF0000A7E1.eurprd02.prod.outlook.com 2026-04-04T13:31:07.605Z 08DE8F7EF865DF93]" received from hotmail-com.olc.protection.outlook.com (52.101.68.20) matching /mail.live.com/mail/troubleshooting.aspx/
next retry2026-04-04 19:55:40
Last Errors
timeerror
2026-04-04 19:54:40 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:54:40 Error: "550 5.7.1 Unfortunately, messages from [178.33.53.204] 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=11BD1F8B573EC249] [SJ5PEPF000001F1.namprd05.prod.outlook.com 2026-04-04T14:24:40.823Z 08DE8FC5AEE59AF3]" while connected from earth.streamad.in (178.33.53.204) to hotmail-com.olc.protection.outlook.com (52.101.41.23)
2026-04-04 19:54:40 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (4x)
2026-04-04 19:53:39 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:53:39 Error: "550 5.7.1 Unfortunately, messages from [178.33.53.204] 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=11BD1E708DB88FD6] [BY1PEPF0001AE18.namprd04.prod.outlook.com 2026-04-04T14:23:39.751Z 08DE8F384AEC916E]" while connected from earth.streamad.in (178.33.53.204) to hotmail-com.olc.protection.outlook.com (52.101.41.184)
2026-04-04 19:53:39 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (4x)
2026-04-04 19:52:38 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:52:38 Error: "550 5.7.1 Unfortunately, messages from [178.33.53.204] 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=11BD1F3E781CCE70] [AMS1EPF00000090.eurprd05.prod.outlook.com 2026-04-04T14:22:38.375Z 08DE8F9F4086312A]" while connected from earth.streamad.in (178.33.53.204) to hotmail-com.olc.protection.outlook.com (52.101.73.152)
2026-04-04 19:52:38 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (4x)
2026-04-04 19:51:39 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
Recipient Events       (Deliveries: 0, Bounces: 50, Deferrals: 0)
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