Hi !
I'm the networking pepole. :-)
The exim server is on DMZ, the tcp/ip ports needed to comunicate smtp are
open.
In fact we receive emails from many domains but not from some domains.
I didn't setup any firewall rules to stop establised connections to
continue.
I can double check this, but I'm quite shure.
Moreover absolutely no special rule is on the firewall about the connections
from/to the backup MX server, but from there the email are arriving with no
problems.
thnaks a lot for the help
Francesco Pasqualini
On Mon, Sep 1, 2008 at 6:18 PM, Chambers, Phil <P.A.Chambers@???>wrote:
>
>
>
> Do you have an application-level firewall between the Internet and your
> mail server? If you do have, it may be deciding not to allow the
> connection to continue because of rules of its own.
>
> Check with your networking people to find out what is between your mail
> server and your Internet link.
>
> Regards,
>
> Phil.
> --------------------
> Phil Chambers
> Postmaster
> University of Exeter
>
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