Mail delivery failed: returning message to sender
Mail Delivery System
Mailer-Daemon na orange.es
Pátek Srpen 27 01:19:59 CEST 2021
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
punja99 na sladkej.cz
SMTP error from remote mail server after MAIL FROM:<linux na linux.cz> SIZE=5259:
host 1512162065.pamx1.hotmail.com [104.47.5.33]:
550 5.7.1 Unfortunately, messages from [62.36.20.208] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [HE1EUR02FT030.eop-EUR02.prod.protection.outlook.com]
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