PowerMTA™ 4.5r1 
mta.streamad.in 

Top 10 queues in virtual MTA "pmta178-204" by number of recipients

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Name #Rcpt KBytes #Conn Paused Mode Last Error
gmail.com/pmta178-204 580 12,135.4 0 no normal 2026-04-04 17:48:55 message rate limit reached (based on queue's max-msg-rate in configuration) (7x)
yahoo.com/pmta178-204 115 2,973.6 0 no normal 2026-04-04 14:34:05 message rate limit reached (based on queue's max-msg-rate in configuration)
hotmail.com/pmta178-204 82 2,172.2 0 no backoff 2026-04-04 18:05:27 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
yahoo.co.in/pmta178-204 73 1,933.8 0 no normal 2026-04-04 18:03:08 Error: "550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 178.33.53.204 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from earth.streamad.in (178.33.53.204) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
yahoo.in/pmta178-204 11 291.4 0 no normal 2026-04-04 18:03:58 Error: "550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 178.33.53.204 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from earth.streamad.in (178.33.53.204) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
live.com/pmta178-204 6 158.9 0 no backoff 2026-04-04 18:05:20 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
outlook.com/pmta178-204 5 132.5 0 no backoff 2026-04-04 18:05:24 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=11BD1F240B8B4AD6] [AMS1EPF00000041.eurprd04.prod.outlook.com 2026-04-04T12:35:24.344Z 08DE8F920A2D231A]" while connected from earth.streamad.in (178.33.53.204) to outlook-com.olc.protection.outlook.com (52.101.73.7)
tmf-group.com/pmta178-204 3 79.5 0 no normal   
endurance.co.in/pmta178-204 2 53.0 0 no backoff   
arsarda.in/pmta178-204 1 26.5 0 no normal   

10 of 25 matching queues.

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