PowerMTA™ 4.5r1 
mta.streamad.in 
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Domain Detail
nameyahoo.co.uk
recipients2
kbytes55.1
active connections0
Queues
vmta recipients kbytes connections paused mode % recipients
pmta213-146 1 27.5 0 no normal 0%
pmta51-206 1 27.5 0 no normal 0%
Last Errors
vmtatimeerror
pmta51-206 2026-06-17 07:14:53 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 mx-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta213-146 2026-06-17 07:14:37 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-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta51-206 2026-06-17 03:14:53 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 mx-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta213-146 2026-06-17 03:14:37 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-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta51-206 2026-06-16 23:14:53 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 mx-eu.mail.am0.yahoodns.net (188.125.72.73)
pmta213-146 2026-06-16 23:14:36 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-eu.mail.am0.yahoodns.net (188.125.72.73)
pmta51-206 2026-06-16 19:14:53 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 mx-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta213-146 2026-06-16 19:14:36 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-eu.mail.am0.yahoodns.net (188.125.72.74)