Hello, I have a similar setup. What I do is using sieve. My script for mailbox creation also includes a small sieve filter setup, so every mailbox has its own filter. So Postfix setup (with spamassasin) adds X-Spam-* headers and the user decides based on that headers.
You have an extra advantage with this method: users may choose to edit his/her filter so he/she could exactly decide whether he/she want junk mail to be dropped, moved to a spam-folder, and the score threshold too. Squirrelmail has an easy plug-in for managing sieve filter in a simple way, including a special rule for managing spam. Hope it helps. Cheers, -Roman Take escribió: > Hello! > > I've been trying to figure out the best way to drop/sort spam with > virtual users. All documentation I could find didn't fit to our virtual > configuration and I'm a bit confused what's the best way to drop spam. > > Our setup is postfix+cyrus-imapd+spamassassin. Users have access to > sieve via roundcube plugin and we'd like to keep sieve out of this anyways. > > The goal is to apply an filter based on SA's score, so that if the score > is > 10 drop the mail and if it's less than 10 but still spam, deliver > it to user/myser/INBOX.Junk. The latter is optional step, main priority > is to drop "certain spam" (score over 10) so that user won't ever see it. > > Currently mail goes trough spamassassin (smtp content-filter) and > virtual-delivery goes trough cyrus lmtp. I was wondering if I could > create another content-filter for lmtp at master.cf (lmtp -o > content_filter=maildrop) and drop/sort junk via that. May be that this > approach is just plain stupid and I didn't get it to work anyways. > > The another approach which came to mind was to use maildrop as an > virtual_transport and trigger cyrdeliver from maildrop, but didn't have > the time to try this one out. Maybe procmail would do better in this > scenario, but I'm not sure. > > Besides the actual goal I'm interested about the efficiency with each > method. I'd like to maintain lmtp-like delivery so that postfix doesn't > have to spawn processes for each and every mail going trough. > > Any help is greatly appreciated. Thank you in advance. >
