Hi,
our mailserver rejects mails from servers that don’t send a resolvable
HELO-hostname.
As such, customers have been complaining about UPC:
450 4.7.1 <vie01a-dmta-ch01.mx.upcmail.net>: Helo command rejected:
From this posting, although a bit dated:
https://www.mail-archive.com/swinog@lists.swinog.ch/msg06676.html
<https://www.mail-archive.com/swinog@lists.swinog.ch/msg06676.html>
it looks as if there is some sort of typo or it was simply forgotten to update
DNS.
Can someone fix this?
Rainer
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