1 message in net.sourceforge.lists.courier-users[courier-users] RE: [courier-users] C...
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Bowie BaileyFeb 24, 2005 6:20 am 
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Subject:[courier-users] RE: [courier-users] Courier as virus/spam filter for another mailserverActions...
From:Bowie Bailey (Bowi@BUC.com)
Date:Feb 24, 2005 6:20:27 am
List:net.sourceforge.lists.courier-users

From: Alessandro Vesely [mailto:ves@tana.it]

Bowie Bailey wrote:

[...] Since there are no DNS records for the domain, it is impossible to deliver directly to this address from anywhere else.

Hmmmm... except for purposely built malaware?

Perhaps, if that malware had access to the Exchange server. As it is, the Exchange server cannot receive mail from outside the network. Incoming smtp is restricted to my Courier server.

It is possible to bypass Courier from inside the network, but that only bypasses the spam checking. There are additional virus checks on the Exchange server and on all the desktops. Outgoing mail is also forced to go through Courier, as it is the only machine that is allowed to send outgoing smtp.

Bowie