Mail delivery failed: returning message to sender
Mail Delivery System
Mailer-Daemon na orange.es
Neděle Říjen 3 05:26:14 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:
slajchova na smtpl.cz
SMTP error from remote mail server after RCPT TO:<slajchova na smtpl.cz>:
host mail.dc3.cz [81.0.217.5]: 550 Recipient not found
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