Mailinglist Archive: opensuse (929 mails)

< Previous Next >
Re: [opensuse] Backup mailserver
  • From: Per Jessen <per@xxxxxxxxxxxx>
  • Date: Thu, 13 Mar 2014 10:18:56 +0100
  • Message-id: <lfrt6b$a0a$>
Koenraad Lelong wrote:


My internet connection at home is broken.
I was trying to set up a backup mailserver at work.

A backup mailserver is most often superfluous. Any mailserver trying to
contact your home mailserver will retry, usually up to 5 days before
returning a mail as undeliverable.

But thinking about it I fear it's impossible. Please comment :

In an MX-record of my home-domain I point a secondary address to the
mailserver at work.
The mailserver at work is configured to accept mail as relay for my
Unfortunately, my mailserver at work is forced to use the relay-server
of my ISP. So when my werk-server accepts mail for my home-domain, it
is able send this to the ISP-relay. The ISP-relay can't send it to my
home-server so it sends this the my work-server etc. An endless loop.

Am I right in this analysis ? How to solve this ?

Your backup server at work should be configured to only try to deliver
to your home-server, not to use the MX. In postfix, you can do this
with a transport map for instance.

Per Jessen, Zürich (8.5°C) - dedicated server rental in Switzerland.

To unsubscribe, e-mail: opensuse+unsubscribe@xxxxxxxxxxxx
To contact the owner, e-mail: opensuse+owner@xxxxxxxxxxxx

< Previous Next >
Follow Ups