Mail delivery failed: returning message to sender
Mail Delivery System
Mailer-Daemon na orange.es
Čtvrtek Srpen 12 16:16:19 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:
tjukl na ost.cz
SMTP error from remote mail server after RCPT TO:<tjukl na ost.cz>:
host mx.internetserver.cz [185.28.193.36]: 554 5.1.1 <tjukl na ost.cz>:
Recipient address rejected: User unknown in virtual mailbox table
qmilda na quick.cz
SMTP error from remote mail server after RCPT TO:<qmilda na quick.cz>:
host smtp-in.quick.cz [90.176.151.97]: 554 5.7.1 Service unavailable; Client host [62.36.20.208] blocked using bl.iol.cz
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