PowerMTA™ 4.5r1 
mta.streamad.in 
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Domain Detail
nameyahoo.com
recipients960
kbytes24,411.3
active connections0
Queues
vmta recipients kbytes connections paused mode % recipients
pmta188-121 138 2,850.1 0 no normal 0%
pmta178-143 105 2,960.1 0 no normal 0%
pmta213-146 96 2,816.8 0 no normal 0%
pmta51-51 94 2,351.5 0 no normal 0%
pmta178-204 90 2,311.5 0 no normal 0%
pmta137-88 88 2,189.7 0 no normal 0%
pmta51-167 81 2,147.0 0 no normal 0%
pmta54-159 79 1,942.0 0 no normal 0%
pmta5-150 73 1,806.9 0 no normal 0%
pmta51-206 63 1,632.0 0 no normal 0%
pmta51-55 53 1,403.8 0 no normal 0%
Last Errors
vmtatimeerror
pmta51-55 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 51.68.102.55 = 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 mta6.am0.yahoodns.net (67.195.228.106)
pmta51-55 2026-04-04 18:03:15 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 mta7.am0.yahoodns.net (67.195.204.74)
pmta51-55 2026-04-04 18:02:48 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 51.68.102.55 = 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 mta5.am0.yahoodns.net (67.195.204.77)
pmta51-206 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)
pmta51-206 2026-04-04 17:32:56 message rate limit reached (based on queue's max-msg-rate in configuration) (4x)
pmta51-206 2026-04-04 17:32:55 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta51-206 2026-04-04 17:31:56 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta51-206 2026-04-04 17:31:56 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 agrimcollection.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 (67.195.228.94)
pmta51-206 2026-04-04 17:31:55 message rate limit reached (based on queue's max-msg-rate in configuration) (5x)
pmta51-206 2026-04-04 17:31:54 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 agrimcollection.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 mta5.am0.yahoodns.net (67.195.204.79)
pmta188-121 2026-04-04 17:16:40 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 mta5.am0.yahoodns.net (98.136.96.91)
pmta188-121 2026-04-04 17:16:40 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 mta6.am0.yahoodns.net (98.136.96.75)
pmta188-121 2026-04-04 17:16:39 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 mta7.am0.yahoodns.net (67.195.228.106) (2x)
pmta188-121 2026-04-04 17:16:39 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 mta5.am0.yahoodns.net (98.136.96.91)
pmta188-121 2026-04-04 17:16:39 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 mta6.am0.yahoodns.net (98.136.96.75)
pmta188-121 2026-04-04 17:16:39 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 mta5.am0.yahoodns.net (98.136.96.91)
pmta188-121 2026-04-04 17:16:39 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 mta6.am0.yahoodns.net (98.136.96.75)
pmta188-121 2026-04-04 17:15:39 message rate limit reached (based on queue's max-msg-rate in configuration) (5x)
pmta188-121 2026-04-04 17:15:39 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 mta7.am0.yahoodns.net (67.195.228.109)
pmta188-121 2026-04-04 17:15:39 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta213-146 2026-04-04 16:35:03 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 mta5.am0.yahoodns.net (67.195.228.111)
pmta213-146 2026-04-04 16:35:03 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 mta6.am0.yahoodns.net (98.136.96.75)
pmta213-146 2026-04-04 16:35:03 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 mta7.am0.yahoodns.net (98.136.96.75)
pmta213-146 2026-04-04 16:34:03 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta213-146 2026-04-04 16:34:02 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta213-146 2026-04-04 16:34:02 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 mta5.am0.yahoodns.net (98.136.96.75)
pmta213-146 2026-04-04 16:34:02 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 mta7.am0.yahoodns.net (98.136.96.75)
pmta213-146 2026-04-04 16:34:02 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 mta5.am0.yahoodns.net (98.136.96.75)
pmta213-146 2026-04-04 16:34:02 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 mta7.am0.yahoodns.net (98.136.96.75)
pmta213-146 2026-04-04 16:34:02 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 mta6.am0.yahoodns.net (67.195.204.73) (2x)
pmta5-150 2026-04-04 16:27:44 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta5-150 2026-04-04 16:27:43 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta5-150 2026-04-04 16:27:43 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 mta6.am0.yahoodns.net (67.195.228.110)
pmta5-150 2026-04-04 16:27:43 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta5-150 2026-04-04 16:27:42 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta5-150 2026-04-04 16:27:42 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 agrimcollection.com 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 mta7.am0.yahoodns.net (98.136.96.74)
pmta5-150 2026-04-04 16:26:42 message rate limit reached (based on queue's max-msg-rate in configuration) (3x)
pmta5-150 2026-04-04 16:26:42 Error: "554 30 Sorry, your message to hrajivn24@yahoo.com cannot be delivered. This mailbox is disabled (554.30)." while connected from mercury.streamad.in (5.135.250.150) to mta7.am0.yahoodns.net (98.136.96.74)
pmta5-150 2026-04-04 16:26:42 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta5-150 2026-04-04 16:26:41 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta178-143 2026-04-04 15:42:43 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta5.am0.yahoodns.net (98.136.96.74)
pmta178-143 2026-04-04 15:42:43 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta7.am0.yahoodns.net (67.195.204.73)
pmta178-143 2026-04-04 15:41:43 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta178-143 2026-04-04 15:41:43 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta5.am0.yahoodns.net (67.195.204.74)
pmta178-143 2026-04-04 15:41:43 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta178-143 2026-04-04 15:41:43 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta7.am0.yahoodns.net (67.195.228.110) (2x)
pmta178-143 2026-04-04 15:41:43 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta6.am0.yahoodns.net (98.136.96.76)
pmta178-143 2026-04-04 15:41:42 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta6.am0.yahoodns.net (98.136.96.76)
pmta178-143 2026-04-04 15:41:42 Error: "421 4.7.0 [TSS04] Messages from 178.32.206.143 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from jupiter.streamad.in (178.32.206.143) to mta5.am0.yahoodns.net (67.195.204.74) (2x)
pmta178-143 2026-04-04 15:40:42 message rate limit reached (based on queue's max-msg-rate in configuration) (5x)
pmta51-167 2026-04-04 15:30:13 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 mta5.am0.yahoodns.net (98.136.96.75)
pmta51-167 2026-04-04 15:29:13 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta51-167 2026-04-04 15:29:13 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 mta6.am0.yahoodns.net (67.195.204.77)
pmta51-167 2026-04-04 15:29:13 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta51-167 2026-04-04 15:29:13 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 mta5.am0.yahoodns.net (67.195.204.72)
pmta51-167 2026-04-04 15:29:12 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 mta7.am0.yahoodns.net (98.136.96.91) (2x)
pmta51-167 2026-04-04 15:29:12 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 mta6.am0.yahoodns.net (67.195.204.77) (2x)
pmta51-167 2026-04-04 15:28:12 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta51-167 2026-04-04 15:28:12 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 mta6.am0.yahoodns.net (67.195.204.72)
pmta51-167 2026-04-04 15:28:12 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta51-51 2026-04-04 15:26:26 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta51-51 2026-04-04 15:26:25 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta51-51 2026-04-04 15:26:25 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 51.68.67.51 = 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 mta7.am0.yahoodns.net (67.195.204.79)
pmta51-51 2026-04-04 15:26:24 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 mta5.am0.yahoodns.net (67.195.204.79)
pmta51-51 2026-04-04 15:25:25 message rate limit reached (based on queue's max-msg-rate in configuration) (3x)
pmta51-51 2026-04-04 15:25:25 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 agrimmarketing.com 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 mta6.am0.yahoodns.net (67.195.204.79)
pmta51-51 2026-04-04 15:25:25 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta51-51 2026-04-04 15:25:24 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta51-51 2026-04-04 15:25:24 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 mta7.am0.yahoodns.net (98.136.96.91)
pmta51-51 2026-04-04 15:25:24 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta178-204 2026-04-04 14:34:05 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta178-204 2026-04-04 14:34:03 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta178-204 2026-04-04 14:34:03 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 mta5.am0.yahoodns.net (98.136.96.91)
pmta178-204 2026-04-04 14:34:02 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 mta7.am0.yahoodns.net (67.195.204.74)
pmta178-204 2026-04-04 14:34:02 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 mta6.am0.yahoodns.net (67.195.204.74)
pmta178-204 2026-04-04 14:34:01 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 178.33.53.204 = 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 mta6.am0.yahoodns.net (67.195.204.74)
pmta178-204 2026-04-04 14:33:03 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta178-204 2026-04-04 14:33:02 message rate limit reached (based on queue's max-msg-rate in configuration) (3x)
pmta178-204 2026-04-04 14:33:01 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 178.33.53.204 = 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 mta5.am0.yahoodns.net (67.195.228.110)
pmta178-204 2026-04-04 14:33:01 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 178.33.53.204 = 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 mta6.am0.yahoodns.net (67.195.204.74) (2x)
pmta137-88 2026-04-04 14:26:32 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 mta7.am0.yahoodns.net (67.195.228.111)
pmta137-88 2026-04-04 14:25:35 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta137-88 2026-04-04 14:25:34 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta137-88 2026-04-04 14:25:33 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 agrimcollection.com 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 mta7.am0.yahoodns.net (67.195.228.109)
pmta137-88 2026-04-04 14:24:32 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta137-88 2026-04-04 14:24:32 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 mta7.am0.yahoodns.net (67.195.204.73)
pmta137-88 2026-04-04 14:24:32 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta137-88 2026-04-04 14:24:31 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta137-88 2026-04-04 14:24:31 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 mta5.am0.yahoodns.net (67.195.228.109)
pmta137-88 2026-04-04 14:24:31 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta54-159 2026-04-04 14:20:30 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 mta5.am0.yahoodns.net (98.136.96.77)
pmta54-159 2026-04-04 14:20:23 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 mta5.am0.yahoodns.net (98.136.96.77)
pmta54-159 2026-04-04 14:20:20 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 mta5.am0.yahoodns.net (98.136.96.77)
pmta54-159 2026-04-04 14:19:23 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta54-159 2026-04-04 14:19:22 message rate limit reached (based on queue's max-msg-rate in configuration) (2x)
pmta51-206 2026-04-04 13:31:52 Error: "421 4.7.0 [TSS04] Messages from 51.254.4.206 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from pluto.streamad.in (51.254.4.206) to mta6.am0.yahoodns.net (67.195.204.74)
pmta51-206 2026-04-04 13:31:52 Error: "421 4.7.0 [TSS04] Messages from 51.254.4.206 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from pluto.streamad.in (51.254.4.206) to mta7.am0.yahoodns.net (98.136.96.76)
pmta51-206 2026-04-04 13:31:52 Error: "421 4.7.0 [TSS04] Messages from 51.254.4.206 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from pluto.streamad.in (51.254.4.206) to mta5.am0.yahoodns.net (98.136.96.75)
pmta54-159 2026-04-04 10:19:18 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 mta6.am0.yahoodns.net (67.195.228.106)
pmta54-159 2026-04-04 10:19:18 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 mta5.am0.yahoodns.net (67.195.204.74)
pmta54-159 2026-04-04 10:18:18 message rate limit reached (based on queue's max-msg-rate in configuration)
pmta54-159 2026-04-04 10:18:18 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 mta5.am0.yahoodns.net (67.195.204.74)
pmta54-159 2026-04-04 10:18:17 message rate limit reached (based on queue's max-msg-rate in configuration) (3x)