-------- Original-Nachricht -------- > Datum: Tue, 04 Sep 2007 14:38:13 -0500 > Von: Charles Steinkuehler <[EMAIL PROTECTED]> > An: [email protected] > Betreff: [dspam-users] Site-wide filtering at smtp time
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > I'm looking at ways to integrate dspam into our qmail infrastructure and > am considering doing site-wide filtering to bounce particularly 'spammy' > spam at SMTP time. > Bouncing? Since I don't know QMail good enough I wanted to ask you how you would implement that? Can you process a inbound message by sending/pipe it to a DSPAM instance or binary and parse the result? > I'm currently running qmail with spamassassin and no > per-user spamassassin configuration tweaks. This lets me bounce mails > with really high spam scores, while passing more questionable mail > through to the user. > > I'd like to have dspam run at smtp time with 'generic' user settings. > This would be possible. > Individual settings could be pulled in at local-delivery time, once > address aliases and forwarding has been dealt with. This probably means > dspam would scan delivered messages twice > Processing a message multiple time is no problem for DSPAM. If I understand you planed design, then on the first scan you will use DSPAM as source for getting scores and then bounce/drop/reject to spammy messages. And then later at local-deliver you do the proper/real scanning and tagging. If this is the case, then the first scan SHOULD NOT tag the message. > , but that doesn't worry me too > much (the amount of real mail is pretty insignificant compared to the > amount of spam we receive, so scanning ham mail multiple times isn't a > serious load issue). > You will probably scan spam mail as well multiple time (depending on the user tokens). But DSPAM is fast. Compared to SA it is even ultra fast. > I'm thinking about having spamd > You probably mean DSPAM? > run at smtp time using a 'global' user > combined amd making all users members of an innoculate group, but am not > sure if this will do what I'm after. > Just don't tag the message in the first scan. Use something like "--mode=notrain --classify --stdout" in the first scan (but you need then to parse the output) and scan normal in the second scan. > Is anyone doing anything similar, and if so, how do you have dspam > configured? > Vanquish (-> http://www.vanquish.com/ . They are one of the sponsors of DSPAM and have a very good reputation for the messaging services they offer) has a QMail setup with DSPAM. As far I know they do scan the message as well multiple times. If I am not wrong, some of their staff are members of this list as well. Just wait and look if they respond. > - -- > Charles Steinkuehler > [EMAIL PROTECTED] > Steve btw: Cool! NewTek! LightWave 3D just rocks! I used to know some one using your products. Absolute terrific product. > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.4 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFG3bQlenk4xp+mH40RAnt7AKDoWZGRsvnExJbGu14yuzeTsx0jpgCfcLDW > j2Iy57vn6pJsIORgKcDCbEs= > =fyCy > -----END PGP SIGNATURE----- -- GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS. Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail
