Hi ihr Lieben,
seit ca. 3 Wochen kriege ich regelmäßig (ca. zweimal die Woche) Mails mit dem Betreff "Undelivered Mail Returned to Sender".
Die Adressen bzw. Inhalte sind immer ein wenig anders. Unten hänge ich ein paar Beispiele an. Ich habe mein Passwort geändert, da ich davon ausgehe, dass mein Account für Spam genutzt wird (dass bei Gesendet und Postausgang nichts zu finden ist, muss ja nichts heißen). Trotzdem habe ich das Gefühl, dass ich noch mehr tun muss, hat jemand von euch vielleicht Erfahrungen damit gemacht und kann mir Tipps geben, wie ich weiter vorgehen sollte?
Viele Grüße
Beispiel 1
MAILER-DAEMON@server1.sitewizard.co.uk.
This is the mail system at host server1.sitewizard.co.uk.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<workwear@barbz.co.uk>: host mail.barbz.co.uk[79.170.44.129] said: 550 unknown
user (in reply to RCPT TO command)
</workwear@barbz.co.uk>
Beispiel 2
MAILER-DAEMON@leaf.mfilter.local
This is the mail system at host leaf101.mfilter.dimenoc.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<desloepenmakelaar@zonnet.nl>: host mx.spamexperts.com[38.111.198.185] said:
550 72.29.89.5 is not allowed to send mail from kabelmail.de. Please see
the SPF record, with scope mfrom, identity thies.bollow@kabelmail.de, and
ip 72.29.89.5 (in reply to end of DATA command)
</desloepenmakelaar@zonnet.nl>
Beispiel 3
Mailer-Daemon@schoolcraft.website.haus)
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:
ws.rodmy.iriarte@gmail.com
host gmail-smtp-in.l.google.com [142.251.165.26]
SMTP error from remote mail server after end of data:
550-5.7.25 [68.171.213.163] The IP address sending this message does not have a
550-5.7.25 PTR record setup, or the corresponding forward DNS entry does not
550-5.7.25 point to the sending IP. As a policy, Gmail does not accept messages
550-5.7.25 from IPs with missing PTR records. Please visit
550-5.7.25 https://support.google.com/mail/answer/81126#ip-practices for more
550 5.7.25 information. y12-20020a05622a004c00b003f9ae403acasi6267030qtw.263 - gsmtp
