On Monday October 23, 2006 at 07:01:47 (AM) Christopher X. Candreva wrote: > > > On Mon, Oct 23, 2006 at 05:53:30AM -0400, Gerard Seibert wrote: > > > Anyway, we send out several times a week flyers to our customers. These > > mailings range from 750 to 2000 messages per run. To scan 2000 identical > > messages is insane, not to mention a total waste of system resources. > > Other than going to the expense of setting up a separate mail server, > > etc. I am looking for a way to circumvent this annoyance. > > To answer your original question: You scan outgoing mail for the same reason > you scan incoming mail: To see if it has a virus. If you have otherwise > restricted the ways your users can send mail (blocked port 25) -- if you > even HAVE users -- this will alert you to infections on your network. I am > assuming you want to know about infections on your network. > > As someone else pointed out, how you send your bulk mail will effect the next > answer: If it is one message with many names, it is only scanned once. If it > is individual messages (not as silly as it sounds, for VERP > bounce-processing purposes) then you will need to see how to not have those > scanned. > > IE, clamav-milter can have compiled-in addresses not to scan. If you know > that those messages come from one IP only, and that machine won't ever be > infected, you can whitelist there. All will depend on what you do. > > Personally, with linux free and hardware all over the place I would just set > up sendmail/postfix/whatever on a separate machine for bulk mail, so bulk > mailings can't ever effect regular mail. > The mail is sent using DADA Mail, a discussion mailing list manager similar to Mailman. Again, yes, VERP is being employed. These are double opt-in lists, not a SPAM list like some asshole aka 'troll' mentioned in a reply. BCC is not even an option since these messages are customized for each individual recipient.
I will investigate the 'white-listing' concept. I had not noticed that before. Setting up another PC is certainly an option, and one that we were intending to do sometime after the New Year when we get a new budget. -- Gerard _______________________________________________ http://lurker.clamav.net/list/clamav-users.html
