Mark Martinec wrote: > Ricardo, > > >> Setup is via dual-sendmail and latest amavisd. >> It seems that the ammount of spam received is too much and basically >> I have sendmail accepting more mail that it can process... Our >> sendmail-rx takes everything (does have some rate limits in place) but >> do not do any RBLs nor username checks. We are still running the latest >> SA 3.0.x but will switch soon to 3.1.x. >> > > Rejecting mail addressed to nonexistent local users is paramount. > > I see two possible directions: add more servers to the mix, > or go for greylisting. I still manage to do without graylisting, > hope it stays that way, but it a single major tool to cut down > the traffic reaching SA without doing too much harm. > I don't handle the mail servers - only the anti-spam/virus stuff. I've been pushing for some time to get up-to-date and valid user listsings autoupdated for some time, but it's been way to slow... The thing was that allowing only valid users would basically provide verification of valid email addresses. Since we forward the mail to the final mail store servers, would milter help in this regard ? Ie, would the message be denied since the destination server would rejected it as the user is unkown ? I believe milter now is mature enough and allows the addition of x-spam-status to the message, right ?
I think I can get funding to get new hardware. Looking at a couple of Xeon Dual Core dual proc. boxes with more memory and 15K scsi disks. >> I might have to do RBLs if not (suggestions for this ?) >> > > RBLs impose higher risks of rejecting valid mail than greylisting. > In my view RBLs only belongs into SA rules, otherwise one is putting > (arbitraty) decisions into foreign hands with little control over it. > That's been my major concern. I do need to look more into greylisting though. Is this something possible on a sendmail-dual scenario or even milter? Also, what about adding a milter to sendmail-rx - is this possible ? -- °(((=((===°°°(((=========================================== ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
