@"DThis 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 24 hours on the queue on vie01a-dmta-ch02.mx.upcmail.net.
The message identifier is: 1mc072-0000oL-MX
The date of the message is: Sun, 17 Oct 2021 08:57:35 +0200
The subject of the message is: Test
The address to which the message has not yet been delivered is:
hier stand die Mail-Adresse des Empfängers bei Bluewin
host mx-v01.bluewin.ch [195.186.120.50]
Delay reason: SMTP error from remote mail server after end of data:
451 4.2.0 sc965: IP reputation ratelimit in effect - https://support.bluewin.ch/provider/bounce/aXA9ODQuMTE2LjM2Ljk0O2M9c2M5NjU7aWQ9Y05SV21ka3F0YXc3bGNOUldtMHA5dDt0cz0xNjM0NTQzNTQy
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.enti"#p112737