Author: Nico Erfurth Date: To: Tom Rowden CC: Exim Users Subject: Re: [Exim] Problem with relaying
Tom Rowden wrote:
> It seems I need a new rule in my exim4.conf file to prevent something from
> happening...
>
> I am using exim 4.12 with sa-exim 2.2 on a Linux 8.0 machine....
>
> The situation is this:
>
> A machine from the internet is able to connect to my mailserver, give a from
> address that appears to be from my local domain and can send to anywhere
> else on the internet, thus making me an open relay of sorts.
So, you're one of these guys who allows relaying by domain?
> It gives the correct message when they give a non-local address for the from
> address and a non local address of "relaying not permitted" however, so I
> know something of some sort is working.
>
> How do I enter a rule in my conf file to fix the above listed problem?
Show your current ACL.
Provide logentries.
Hmmm, any maybe also show your authenticator, if you use authentication.