Sender verification probles and manual routes

Helo fellow Exim users...

I have two mail servers that handle mail for all our clients, but does not
host any physical mail boxes.

MX records for our domains simply points to my mail servers, gets scanned
for virusses, malware, SPAM etc etc, then gets sent to the 'remote
server'.

The problem is, if lets say domain.org's MX records points to myserver1
and myserver2. When someone sends mail from someone@domain.org to another
server that does verification on the sender, the target server queries my
mail servers asking it if the sender is a valid user. Since my server does
not host any physical mailboxes it says 'NO' which causes the verification
to fail :/

I have local_domains = @
If I change the local_domains to lookup in mysql a list of all the
domains, would that make a difference ?

Is there any way around this ?

I can paste some config if it can help.

Thanks

Wayne

Hello Wayne,

Wayne Swart schrieb/wrote:

> MX records for our domains simply points to my mail servers, gets scanned
> for virusses, malware, SPAM etc etc, then gets sent to the 'remote
> server'.
>
> The problem is, if lets say domain.org's MX records points to myserver1
> and myserver2. When someone sends mail from someone@domain.org to another
> server that does verification on the sender, the target server queries my
> mail servers asking it if the sender is a valid user. Since my server does
> not host any physical mailboxes it says 'NO' which causes the verification
> to fail :/
>
> I have local_domains = @
> If I change the local_domains to lookup in mysql a list of all the
> domains, would that make a difference ?

No. The domain part is not the problematic one. It's the local part
you should care about.

> Is there any way around this ?

Your mail server should do a recipient verification via smtp callout.

Regards,
Christian
--
Christian Schmidt | Germany | ChriSchmiLi@gmx.de
No HTML Mails, please!!
De eene hett 'n Rittergut, de annere ritt 'n Gitter rut.