hi -- What you want is the VBounce ruleset, including in SpamAssassin 3.2.x or downloadable for 3.1.x here: http://wiki.apache.org/spamassassin/VBounceRuleset . It's designed to deal with exactly what you're describing.
--j. sacoo sacoo writes: > Well, maybe I didn't explain it properly we are not providing relay for the > outgoing mail, we are only filtering for viruses/spam the incoming mails and > the part that are junk of them are the ones bouncing to us and giving > problems. > > Relay service is a non-op in the current spam war. If you > > do what you are trying to do here, then legitimate bounce messages > > will also be dropped and thus you'll be decreasing the quality of > > their service. (and if you don't, you'll be creating backscatter) > > > If I achieved what I'm trying there should been that much of problem: > .- Only bounces generated by spammy mails would be marked as spam (exactly > the same that would have been marked using the usual antispam) minimalizing > the legitimate bounces discarded. > .- And these way we will minimize the backskatter we are providing > > > On 8/21/07, Jo Rhett <[EMAIL PROTECTED]> wrote: > > > > Really the only way to solve this properly is to stop providing relay > > service. Relay service is a non-op in the current spam war. If you > > do what you are trying to do here, then legitimate bounce messages > > will also be dropped and thus you'll be decreasing the quality of > > their service. (and if you don't, you'll be creating backscatter) > > > > It's a no-win scenario. If they do their own spam scanning, they > > should accept the mail directly. > > > > On Aug 21, 2007, at 8:49 AM, sacoo sacoo wrote: > > > It must been asked before, but I couldn't find any suitable, will > > > be glad if > > > you point me somewhere... > > > In our company we have the (mailer-exchange -> spam-scanner -> > > > customers > > > with their own mail servers) topology. > > > We relay mail to them but some of them don't have the spam service > > > with us > > > and prefer to have it on their side, then we are all the time > > > getting the > > > spam we forward rejected, our spam server generates a bounce (From: > > > [EMAIL PROTECTED] (Mail Delivery System)). > > > This bounce keeps bouncing there until expires increasing the load > > > of our > > > server. > > > We would like to know if there is any way to force the filtering > > > the mails > > > from [EMAIL PROTECTED] > > > > > > As far, the only guess i found was to modify the master.cf somehow > > > from > > > this: > > > smtp inet n - - - - smtpd -o > > > content_filter=smtp:[127.0.0.1]:10024 > > > localhost:10025 inet n - n - - > > > smtpd -o > > > content_filter= > > > > > > To something like this > > > smtp inet n - - - - smtpd -o > > > content_filter=smtp:[127.0.0.1]:10024 > > > localhost:25 inet n - - - - > > > smtpd -o > > > content_filter=smtp:[127.0.0.1]:10024 > > > localhost:10025 inet n - - - - > > > smtpd -o > > > content_filter=smtp:[127.0.0.1]:10024 > > > > > > Filtering the localhost generated mails. > > > But I donno if it's the right approach. > > > > > > Any help appreciated > > > > > > Cheers > > > > -- > > Jo Rhett > > Net Consonance : consonant endings by net philanthropy, open source > > and other randomness > > > > > >
