PowerMTA™ 4.5r1 
mta.streamad.in 

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Queue Detail
nameoutlook.com/pmta51-206
recipients2
kbytes53.0
active connections0
pausedno
modebackoff
backoff reason2026-04-04 19:05:31 "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=11BD1EACB5F16F53] [AM4PEPF00027A67.eurprd04.prod.outlook.com 2026-04-04T13:35:31.630Z 08DE8F565FC7D28A]" received from outlook-com.olc.protection.outlook.com (52.101.73.9) matching /mail.live.com/mail/troubleshooting.aspx/
next retry2026-04-04 20:06:02
Last Errors
timeerror
2026-04-04 19:06:02 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=11BD1E774C13A6C5] [DU2PEPF0001E9C5.eurprd03.prod.outlook.com 2026-04-04T13:36:02.038Z 08DE8F3BAB1FF1B0]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.68.2)
2026-04-04 19:05:46 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:05:46 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=11BD1F7541CA77B7] [DU2PEPF00028CFF.eurprd03.prod.outlook.com 2026-04-04T13:35:46.881Z 08DE8FBAA532A38E]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.68.38)
2026-04-04 19:05:31 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
2026-04-04 19:05:31 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=11BD1FB7860AC0AA] [AM4PEPF00027A6C.eurprd04.prod.outlook.com 2026-04-04T13:35:31.726Z 08DE8FDBC6E8F6AC]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.73.9)
2026-04-04 19:05:31 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=11BD1EACB5F16F53] [AM4PEPF00027A67.eurprd04.prod.outlook.com 2026-04-04T13:35:31.630Z 08DE8F565FC7D28A]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.73.9)
2026-04-04 18:05:31 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=11BD1EF31CEAEAF3] [AMS1EPF00000040.eurprd04.prod.outlook.com 2026-04-04T12:35:31.487Z 08DE8F7992F74C21]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.73.7)
2026-04-04 18:05:16 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=11BD1E82C82AF2CC] [AMS1EPF00000045.eurprd04.prod.outlook.com 2026-04-04T12:35:16.390Z 08DE8F4168F9A531]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.73.7)
2026-04-04 18:05:01 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=11BD1EBB525B5061] [CH3PEPF0000000A.namprd04.prod.outlook.com 2026-04-04T12:35:01.243Z 08DE8F5DACC9E1ED]" while connected from pluto.streamad.in (51.254.4.206) to outlook-com.olc.protection.outlook.com (52.101.194.5)
2026-04-04 18:04:45 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
Recipient Events       (Deliveries: 0, Bounces: 17, Deferrals: 0)
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