PowerMTA™ 4.5r1 
mta.streamad.in 

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Queue Detail
nameoutlook.com/pmta51-167
recipients3
kbytes79.5
active connections0
pausedno
modebackoff
backoff reason2026-04-04 19:06:02 "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD21EBEA2B912D] [DU2PEPF0001E9C4.eurprd03.prod.outlook.com 2026-04-04T13:36:02.017Z 08DE90F5F6CE381C]" received from outlook-com.olc.protection.outlook.com (52.101.68.2) matching /mail.live.com/mail/troubleshooting.aspx/
next retry2026-04-04 20:06:47
Last Errors
timeerror
2026-04-04 19:06:47 Error: "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD24317B9FF54C] [AMS1EPF00000049.eurprd04.prod.outlook.com 2026-04-04T13:36:47.864Z 08DE9218BE144EE9]" while connected from neptune.streamad.in (51.68.59.167) to outlook-com.olc.protection.outlook.com (52.101.73.18)
2026-04-04 19:06:32 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:06:32 Error: "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD1F63EEE6EF93] [AMS1EPF0000004D.eurprd04.prod.outlook.com 2026-04-04T13:36:32.759Z 08DE8FB1FBBBC578]" while connected from neptune.streamad.in (51.68.59.167) to outlook-com.olc.protection.outlook.com (52.101.73.18)
2026-04-04 19:06:17 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:06:17 Error: "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD2171058CEA90] [DU2PEPF0001E9C2.eurprd03.prod.outlook.com 2026-04-04T13:36:17.662Z 08DE90B885047E5F]" while connected from neptune.streamad.in (51.68.59.167) to outlook-com.olc.protection.outlook.com (52.101.68.2)
2026-04-04 19:06:02 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:06:02 Error: "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD1F97A8E5EE12] [DU2PEPF0001E9C0.eurprd03.prod.outlook.com 2026-04-04T13:36:02.173Z 08DE8FCBD88BBFC3]" while connected from neptune.streamad.in (51.68.59.167) to outlook-com.olc.protection.outlook.com (52.101.68.2)
2026-04-04 19:06:02 Error: "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD21EBEA2B912D] [DU2PEPF0001E9C4.eurprd03.prod.outlook.com 2026-04-04T13:36:02.017Z 08DE90F5F6CE381C]" while connected from neptune.streamad.in (51.68.59.167) to outlook-com.olc.protection.outlook.com (52.101.68.2)
2026-04-04 18:05:46 Error: "550 5.7.1 Unfortunately, messages from [51.68.59.167] 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=11BD1EEA79DCF894] [OSA0EPF000000C8.apcprd02.prod.outlook.com 2026-04-04T12:35:46.629Z 08DE8F75437AAD46]" while connected from neptune.streamad.in (51.68.59.167) to outlook-com.olc.protection.outlook.com (52.101.157.0)
2026-04-04 18:05:29 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
Recipient Events       (Deliveries: 0, Bounces: 19, Deferrals: 0)
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