If sending outbound directly from the hosted server, that is exposing that server in that the recipient will be able to see the IP address.
Another added benefit of sending outbound through the scanning server, it handles communications with the rest of world, off loading that from the hosting server. Another added benefit of sending outbound through the scanning server, you can use AutoWhite for Declude which keeps track of who local users and sending to and will add a negative weight to messages those remote users send to the local users depending upon the volume of e-mail sent to them from the local user. John Tolmachoff Engineer/Consultant/Owner eServices For You > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:Declude.JunkMail- > [EMAIL PROTECTED] On Behalf Of Goran Jovanovic > Sent: Tuesday, January 18, 2005 1:03 PM > To: [email protected] > Subject: [Declude.JunkMail] Benefit of relaying outbound mail through Declude > > Hi, > > I have a scanning server that has no mailboxes hosted on it. It forwards > everything off to the final destinations. Now one of the destinations is > my hosting server. I have incoming mail figured out just fine. What I am > thinking about is outgoing mail. > > When a user connects to the hosting server they must authenticate. Now > they can send mail. Is there a benefit of passing the mail back to the > scanning server and have it send it out to wherever or should the > hosting server just send it out? If the scanning server was to send the > mail out then it would have to allow complete relay from the hosting > server. > > Also I will never have an MX record pointing to the hosting server (will > always point to my scanning server) so I hope that the spammers will > never find it (perhaps a vain hope). But since I have to allow users to > connect via SMTP (with auth) then port 25 must be open to the outside > world. Now if someone was to figure out the IP of the hosting server and > what domains were stored on it they could send directly and bypass > scanning (both junkmail and virus). > > So any thoughts/benefits/comments on > > 1) Passing outgoing mail back to Declude to e-mail to the Internet > 2) Any better way to prevent spammers from finding the hosting server > > Thank you all > > Oh yes both servers are behind a firewall. > > > Goran Jovanovic > The LAN Shoppe > --- > [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] > > --- > This E-mail came from the Declude.JunkMail mailing list. To > unsubscribe, just send an E-mail to [EMAIL PROTECTED], and > type "unsubscribe Declude.JunkMail". The archives can be found > at http://www.mail-archive.com. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
