PowerMTA™ 4.5r1 
mta.streamad.in 

Top 10 queues in virtual MTA "pmta51-206" by number of recipients

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Name #Rcpt KBytes #Conn Paused Mode Last Error
gmail.com/pmta51-206 577 12,176.5 0 no normal 2026-04-04 17:40:56 message rate limit reached (based on queue's max-msg-rate in configuration) (10x)
yahoo.com/pmta51-206 92 2,400.0 0 no normal 2026-04-04 17:33:55 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 agrimmarketing.com with ip 51.254.4.206 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from pluto.streamad.in (51.254.4.206) to mta6.am0.yahoodns.net (67.195.204.73)
hotmail.com/pmta51-206 85 2,251.8 0 no backoff 2026-04-04 18:05:07 message rate limit reached (based on queue's backoff-max-msg-rate in configuration) (2x)
yahoo.co.in/pmta51-206 63 1,669.0 0 no normal 2026-04-04 18:03:55 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 51.254.4.206 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from pluto.streamad.in (51.254.4.206) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
rediffmail.com/pmta51-206 10 264.9 0 no normal 2026-04-04 18:00:58 Timed out, status = ETIMEDOUT while connecting from pluto.streamad.in (51.254.4.206) to mx.rediffmail.rediff.akadns.net (202.137.234.30)
live.com/pmta51-206 8 211.9 0 no backoff 2026-04-04 18:05:25 message rate limit reached (based on queue's backoff-max-msg-rate in configuration)
yahoo.in/pmta51-206 7 185.4 0 no normal 2026-04-04 18:03:47 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 51.254.4.206 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from pluto.streamad.in (51.254.4.206) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
ymail.com/pmta51-206 7 185.4 0 no normal 2026-04-04 18:03:44 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 51.254.4.206 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from pluto.streamad.in (51.254.4.206) to mta6.am0.yahoodns.net (67.195.228.106)
outlook.com/pmta51-206 5 132.5 0 no backoff 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)
abacharteredaccountants.in/pmta51-206 1 26.5 0 no normal   

10 of 27 matching queues.

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