Mail delivery failed: returning message to sender
Mail Delivery System
Mailer-Daemon na orange.es
Pondělí Září 6 10:59:13 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:
tom.burg na seznamka.cz
SMTP error from remote mail server after RCPT TO:<tom.burg na seznamka.cz>:
host mail26.tanger.cz [212.109.183.26]: 501 5.7.1 <linux na linux.cz>... IP 62.36.20.214 refused by the DNSBL bl.spamcop.net
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