Mail forwarding to GMX.de (or .ch, .net) and WEB.de

[michaelstocker]

Hi Community

I have never experienced any problems with mailmaps in zoneedit within the something around 6 years I am using it now. Unfortunately, one German Mail-Service (WEB.de and GMX.de seem to be owned by the same company) doesn't accept Mail Forwards from zoneedit anymore. Here's what users get back, wenn they try to use "example@ruesssuuger.ch". Can you help me with any suggestions on how to get this solved? Thank you in advance.

best regards
Michael

-------- Ursprüngliche Nachricht --------
Von:
Datum: 29.05.2016 19:59 (GMT+01:00)
An: mailfwd2.zoneedit.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

<mx-ha03.web.de[212.227.15.17] said: 550-Requested action not taken: mailbox
unavailable 550-Reject due to SPF policy. 550-The originating IP of the
message is not permitted by the domain owner. 550 For explanation visit
http://postmaster.web.de/error-messages?ip=166.88.18.34&c=spf (in reply to
MAIL FROM command)

<mx01.emig.gmx.net[212.227.17.5] said: 550-Requested action not taken:
mailbox unavailable 550-Reject due to SPF policy. 550-The originating IP of
the message is not permitted by the domain owner. 550 For explanation visit
http://postmaster.gmx.com/en/error-messages?ip=166.88.18.34&c=spf (in reply
to MAIL FROM command)

 

[Lars007]

Hi Michael

There is a fairly detailed article on the technical background here: https://www.heinlein-support.de/blog/news/gmx-de-und-web-de-haben-mail-rejects-durch-spf/

TL;DR: If the original message (the one the user sends to the mail address you have set up on zoneedit to redirected) originates at web.de/gmx.de and is being redirected to another web.de/gmx.de mailbox, the web.de/gmx.de mailserver will recognise that the zoneedit mail servers are not authorised to deliver mail from web.de/gmx.de (as per the web.de/gmx.de SPF record) and reject with the above error message.

Lars