Re: Mail server tries to send to redundant server instead of accepting the incoming smtp mail
- Am 24.11.2011 04:48, schrieb Islam, Towhid:
> Thanks Viktor, for you have diagnosed my problem to the point.what exactly do you not know?
>>> Typically this also means that the DNS view of the domain's MX
>>> records as seen by the servers is likely the external one, but
>>> they probably need an internal view that presents only the internal
>>> SMTP servers for the domain.
> This exactly the problem however, I am not how to set up the dns for the host
> correctly such that any lookup will yield the host's internal (NATted) address.
do you not have a dns-server in your internal network?
> What I wonder however, is why does this problem appear intermittently?i guess there is / was a cisco-router touched or replaced which did
translated dns responses with public addresses he knows the internal
one - afaik this can be disabled and is only available on cisco-routers