At 5:04 PM -0700 15/10/01, Warren Michelsen wrote: >In a cooperative agreement with my ISP, I have set up a SIMS server >to be a spam filter for his domain. His ancient Netscape mail server >has no anti-spam features.
Well, maybe he should just use SIMS ;-) >We call the new, spam-filtering host smtp.domain.com (where >domain.com is his domain). > >His normal mail host is mail.domain.com so, I put in the router: > > domain.com = mail.domain.com > >He then assigned a higher priority to smtp.domain.com than to >mail.domain.com. Most incoming mail should now seek out >smtp.domain.com instead of mail.domain.com. Depending on the spammer, a lot try and use the secondary servers so that their message won't be rejected straight off. Many secondary servers don't have the same protections as applied to the primary server, so this is worth a go for them. If they are using an open relay this won't work for them as they don't control the delivering host, unless they use a percent hack etc to specify the mail path. >All of the anti-spam features, RBL, blacklist, etc. will be applied >to his incoming email and the good stuff, non-spam, will be passed >on to mail.domain.com by the router entry "domain.com = >mail.domain.com". Yes, that's fine. >The problem is that since, I can't "Relay for Clients Only", I >obviously need another router entry to handle all the spam that they >attempt to relay through this open relay I have created. Why can't you 'Relay for Clients Only'? In SIMS 1.8b8 at least, and some earlier versions any mail that is "touched" by the router in that way is marked as safe to relay. *NEVER* run a mail server with Relay for Clients Only off. Its very bad karma. >Anything that is not handled by the "domain.com = mail.domain.com" >entry needs to be rejected. What do I put at the end of the router >to reject everything else? > >* = error You shouldn't need this as far as I can tell. Andrew ############################################################# This message is sent to you because you are subscribed to the mailing list <[EMAIL PROTECTED]>. To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]> Send administrative queries to <[EMAIL PROTECTED]>
