I'll try to describe my problem as best as possible. I've tried searching but couldn't find anything that quite matched my situation.
I'm running a dedicated server offsite with at least 40 domain's email running through an exim mail server. Recently, we purchased a Barracuda to place onsite, and I pointed all MX records to the Barracuda, which then pushes the email from our network to the offsite server.
My problem is this: I run all of the domain's incoming mail through the barracuda, but spammers are still targeting our mail server directly, thus bypassing the filtering. Outgoing mail from our server does not pass through the barracuda.
My question: How would I configure the exim mail server to only accept incoming mail from the barracuda, or basically, stop the incoming spam hitting our server directly?
This is the first time I've routed email from a local filter to an external server, so specific instructions would be MUCH appreciated.
Running Exim 4, WHM 11, CPanel 11
Thanks!
I'm running a dedicated server offsite with at least 40 domain's email running through an exim mail server. Recently, we purchased a Barracuda to place onsite, and I pointed all MX records to the Barracuda, which then pushes the email from our network to the offsite server.
My problem is this: I run all of the domain's incoming mail through the barracuda, but spammers are still targeting our mail server directly, thus bypassing the filtering. Outgoing mail from our server does not pass through the barracuda.
My question: How would I configure the exim mail server to only accept incoming mail from the barracuda, or basically, stop the incoming spam hitting our server directly?
This is the first time I've routed email from a local filter to an external server, so specific instructions would be MUCH appreciated.
Running Exim 4, WHM 11, CPanel 11
Thanks!