PowerMTA™ 4.5r1 
mta.streamad.in 
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Domain Detail
nameyahoo.in
recipients205
kbytes5,208.9
active connections0
Queues
vmta recipients kbytes connections paused mode % recipients
pmta188-121 48 1,087.4 0 no normal 0%
pmta213-146 25 634.6 0 no normal 0%
pmta51-55 23 609.2 0 no normal 0%
pmta51-167 20 520.6 0 no normal 0%
pmta51-51 18 476.7 0 no normal 0%
pmta54-159 17 450.3 0 no normal 0%
pmta137-88 16 423.7 0 no normal 0%
pmta178-204 11 291.4 0 no normal 0%
pmta178-143 11 291.3 0 no normal 0%
pmta5-150 9 238.4 0 no normal 0%
pmta51-206 7 185.4 0 no normal 0%
Last Errors
vmtatimeerror
pmta178-143 2026-04-04 18:04:01 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 178.32.206.143 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from jupiter.streamad.in (178.32.206.143) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta178-204 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)
pmta51-206 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)
pmta5-150 2026-04-04 18:03:46 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 5.135.250.150 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from mercury.streamad.in (5.135.250.150) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta178-143 2026-04-04 18:03:45 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 178.32.206.143 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from jupiter.streamad.in (178.32.206.143) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta178-204 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 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)
pmta51-206 2026-04-04 18:03:41 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)
pmta51-51 2026-04-04 18:03:38 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 51.68.67.51 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from planet.streamad.in (51.68.67.51) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta137-88 2026-04-04 18:03:38 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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from uranus.streamad.in (137.74.217.88) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta178-204 2026-04-04 18:03:37 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)
pmta51-206 2026-04-04 18:03:36 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)
pmta51-51 2026-04-04 18:03:34 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 51.68.67.51 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from planet.streamad.in (51.68.67.51) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-206 2026-04-04 18:03:25 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)
pmta54-159 2026-04-04 18:03:23 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 54.36.75.159 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from ceres.streamad.in (54.36.75.159) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta137-88 2026-04-04 18:03:22 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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from uranus.streamad.in (137.74.217.88) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta178-143 2026-04-04 18:03:21 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 178.32.206.143 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from jupiter.streamad.in (178.32.206.143) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-206 2026-04-04 18:03:17 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)
pmta5-150 2026-04-04 18:03:14 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 5.135.250.150 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from mercury.streamad.in (5.135.250.150) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta54-159 2026-04-04 18:03:09 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 54.36.75.159 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from ceres.streamad.in (54.36.75.159) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-55 2026-04-04 18:03:07 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 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from venus.streamad.in (51.68.102.55) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-206 2026-04-04 18:02:57 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)
pmta51-51 2026-04-04 18:02:51 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 51.68.67.51 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from planet.streamad.in (51.68.67.51) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-206 2026-04-04 18:02:51 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)
pmta51-206 2026-04-04 18:02:33 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)
pmta54-159 2026-04-04 18:00:54 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 54.36.75.159 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from ceres.streamad.in (54.36.75.159) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-167 2026-04-04 18:00:48 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 51.68.59.167 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from neptune.streamad.in (51.68.59.167) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta51-51 2026-04-04 18:00:39 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 51.68.67.51 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from planet.streamad.in (51.68.67.51) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta188-121 2026-04-04 17:47:58 Error: "421 4.7.0 [TSS04] Messages from 188.165.10.121 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from saturn.streamad.in (188.165.10.121) to mx-apac.mail.gm0.yahoodns.net (106.10.248.73)
pmta188-121 2026-04-04 17:47:56 Error: "421 4.7.0 [TSS04] Messages from 188.165.10.121 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from saturn.streamad.in (188.165.10.121) to mx-apac.mail.gm0.yahoodns.net (106.10.248.73) (6x)
pmta188-121 2026-04-04 17:46:57 message rate limit reached (based on queue's max-msg-rate in configuration) (3x)
pmta188-121 2026-04-04 17:46:55 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta188-121 2026-04-04 17:46:55 Error: "421 4.7.0 [TSS04] Messages from 188.165.10.121 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from saturn.streamad.in (188.165.10.121) to mx-apac.mail.gm0.yahoodns.net (106.10.248.73)
pmta188-121 2026-04-04 17:46:55 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta188-121 2026-04-04 17:46:55 Error: "421 4.7.0 [TSS04] Messages from 188.165.10.121 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from saturn.streamad.in (188.165.10.121) to mx-apac.mail.gm0.yahoodns.net (106.10.248.73)
pmta188-121 2026-04-04 17:46:55 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta188-121 2026-04-04 17:46:55 Error: "421 4.7.0 [TSS04] Messages from 188.165.10.121 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from saturn.streamad.in (188.165.10.121) to mx-apac.mail.gm0.yahoodns.net (106.10.248.73) (4x)
pmta213-146 2026-04-04 16:32:14 Error: "421 4.7.0 [TSS04] Messages from 213.32.59.146 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from sun.streamad.in (213.32.59.146) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta213-146 2026-04-04 16:32:12 Error: "421 4.7.0 [TSS04] Messages from 213.32.59.146 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from sun.streamad.in (213.32.59.146) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74)
pmta188-121 2026-04-04 13:46:53 Error: "421 4.7.0 [TSS04] Messages from 188.165.10.121 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from saturn.streamad.in (188.165.10.121) to mx-apac.mail.gm0.yahoodns.net (106.10.248.74) (3x)