Mail delivery failed: returning message to sender

Mail Delivery System Mailer-Daemon na orange.es
Neděle Srpen 22 11:17:27 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:

  j.zakopal na sznam.cz
    SMTP error from remote mail server after RCPT TO:<j.zakopal na sznam.cz>:
    host sznam.cz [46.28.105.4]: 554 5.7.1 Service unavailable; Client host [62.36.20.208] blocked using dnsbl.sorbs.net; Currently Sending Spam See:
    http://www.sorbs.net/lookup.shtml?62.36.20.208



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