PowerMTA™ 4.5r1 
mta.streamad.in 

Help
Domain Detail
namehotmail.com
recipients0
kbytes0.0
active connections0
Queues
vmta recipients kbytes connections paused mode % recipients
pmta137-88 0 0.0 0 no backoff 0%
pmta51-167 0 0.0 0 no backoff 0%
Last Errors
vmtatimeerror
pmta137-88 2026-04-04 14:32:12 Error: "550 5.7.1 Unfortunately, messages from [137.74.217.88] 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=11BD1F004E652E81] [BL02EPF0002992B.namprd02.prod.outlook.com 2026-04-04T09:02:12.642Z 08DE8F802A8B7B90]" while connected from uranus.streamad.in (137.74.217.88) to hotmail-com.olc.protection.outlook.com (52.101.9.27)
pmta137-88 2026-04-04 14:31:11 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
pmta137-88 2026-04-04 14:31:11 Error: "550 5.7.1 Unfortunately, messages from [137.74.217.88] 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=11BD1F26BA36F47E] [DS2PEPF00003442.namprd04.prod.outlook.com 2026-04-04T09:01:11.725Z 08DE8F93605B3555]" while connected from uranus.streamad.in (137.74.217.88) to hotmail-com.olc.protection.outlook.com (52.101.8.45)
pmta51-167 2026-04-04 14:31:08 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=11BD1E912DAE540E] [DS2PEPF00003446.namprd04.prod.outlook.com 2026-04-04T09:01:08.374Z 08DE8F489A924C1A]" while connected from neptune.streamad.in (51.68.59.167) to hotmail-com.olc.protection.outlook.com (52.101.8.45)