PowerMTA™ 4.5r8 
host.dizifrost.com 

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Queue Detail
nameyahoo.rollup/pmta-vmta3
recipients20
kbytes167.9
active connections0
pausedno
modenormal
backoff reason 
next retry2025-07-18 00:52:13
Last Errors
timeerror
2025-07-18 00:51:18 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
2025-07-18 00:50:13 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
2025-07-18 00:49:13 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
2025-07-18 00:49:13 SMTP service unavailable: "421 4.7.0 [TSS04] Messages from 216.117.173.185 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" received from mta6.am0.yahoodns.net (67.195.228.106) while connected from api3.dizifrost.com (216.117.173.185) to mta6.am0.yahoodns.net (67.195.228.106)
2025-07-18 00:48:13 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
2025-07-18 00:47:13 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
2025-07-18 00:46:12 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
2025-07-18 00:46:12 SMTP service unavailable: "421 4.7.0 [TSS04] Messages from 216.117.173.185 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" received from mta7.am0.yahoodns.net (67.195.204.72) while connected from api3.dizifrost.com (216.117.173.185) to mta7.am0.yahoodns.net (67.195.204.72)
2025-07-18 00:46:12 SMTP service unavailable: "421 4.7.0 [TSS04] Messages from 216.117.173.185 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" received from mta6.am0.yahoodns.net (98.136.96.91) while connected from api3.dizifrost.com (216.117.173.185) to mta6.am0.yahoodns.net (98.136.96.91)
2025-07-18 00:45:13 message rate limit reached (based on VirtualMTA's or pool's max-smtp-msg-rate in configuration)
Recipient Events       (Deliveries: 24, Bounces: 6, Deferrals: 0)
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