Subject: Warning: message 1rj3gO-0004Iq-2U delayed 48 hours
From: Mail Delivery System <[email-masked]>
To: [email-masked]
Date: Mon, 11 Mar 2024 15:06:12 -0600

This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 48 hours on the queue on 5053257.serviciosfem.com.

The message identifier is:     1rj3gO-0004Iq-2U
The date of the message is:    Sat, 9 Mar 2024 22:52:38 +0200
The subject of the message is: re:

The address to which the message has not yet been delivered is:

  [email-masked]
    host mta6.am0.yahoodns.net [98.136.96.75]
    Delay reason: SMTP error from remote mail server after pipelined MAIL FROM:<[email-masked]> SIZE=5342:
    421 4.7.0 [TSS04] Messages from 162.215.211.27 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes

No action is required on your part. Delivery attempts will continue for
some time, and this warning may be repeated at intervals if the message
remains undelivered. Eventually the mail delivery software will give up,
and when that happens, the message will be returned to you.