Well, John. You might just change my mind about spamassassin. Care to share your configuration somewhere? I'm willing to give it another try. I agree that crowd-sourced enhancements could indeed be powerful in this use case. Janina John G Heim writes: > I don't think there is a better spam filtering tool than spamassassin. I ran > the mail server for my department and all by myself, I was able to get > filtering as efficient as the campus mail server which used a commercial > product and had a full-time employee tuning it. The secret is crowd > sourcing. I had it download a new set of rules nightly and configured it to > use 3 crowd sourced systems, dcc, razor and pyzor. It took a while to set > all that up but once it was done, all I had to do was sit back and let the > world tune my spam filter. > > Spamassassin is a bigger resource hog than anything else in a mail system. I > think that is probably true of any spam/virus filter. There is just a lot to > do. And really, it's the virus scanning part that is the worst. You don't > want to skip that. We had about 200 users on a machine with 16 cores and 32 > Gb of ram. It never had a problem with the load. > > On 01/11/2016 01:43 PM, Janina Sajka wrote: > >Hi, > > > >I've got my crm set up via my personal ~/.procmailrc . It can also be > >setup system wide, however I haven't needed that recently. > > > >The crm home page does discuss site wide deployment: > >http://crm114.sourceforge.net/wiki/doku.php > > > >I note one can even use it with Spamassassin. I didn't go that way. I > >dropped Spamassassin because it was spawning far too many processes that > >were absorbing far too much of my available system resources, so that > >other tasks on my server were suffering. > > > >Am I completely happy with the results? No. I still get too many false > >positives and consequently still need to look at my spam folder from > >time to time. I've white-listed many more email sources than I would > >have expected. > > > >However, I see no more than a dozen or so emails in my inbox daily, and > >that's a big improvement over what I was getting from Spamassassin. > > > >hth > > > >Janina > > > > > >covici@xxxxxxxxxxxxxx writes: > >>How would you use crm114 for spam filtering? Also, I am unfamiliar with > >>dkim and dmark, -- I do have sendmail -- how would those help? > >> > >>Janina Sajka <janina@xxxxxxxxxxx> wrote: > >> > >>>Juan Hernandez writes: > >>>>I need webmail, imap, virtual domains, spam/antivirus protection, etc. > >>>Let's take them one at a time ... > >>> > >>>webmail > >>>This one is easy. Go with squirrelmail . > >>> > >>> imap > >>> Another easy one, dovecot . > >>> > >>> virtual domains > >>> Any mta worth its salt will give you this. It's pretty trivial, e.g. in > >>> sendmail you simply add domains into a config file, one per line. If > >>> need be, you can get more elaborate, e.g. direct mail addressed to > >>> a@b.c. to d@e.f. It's all very doable. > >>> > >>> spam/antivirus protection > >>> This one is more complicated, and more important. I'm sure you're not > >>> interested in becoming an open relay for every spammer on the planet? > >>> So: > >>> > >>> Antivirus -- You probably only care if you have users on Windows. > >>> clamav is my choice for this, though mine is curently broken--I don't > >>> have windows clients. > >>> > >>> anti-spam -- much of this depends on a good mta configuration. Today's > >>> mta's, you'll probably select either sendmail or procmail, set you up > >>> by default with a pretty good configuration. You'll want to carefully > >>> read your way through the config file to understand what's going on. > >>> This is the starting point. > >>> > >>> Next is the process of sorting the mail that arrives into "probably OK" > >>> and "probably junk" piles. People used to rely on spamassassin for > >>> that, but I found it far too resource heavy and stopped using it about > >>> two years ago. I'm now using crm114. And, with Jason White, I'm looking > >>> at possibly moving to rstampd . > >>> > >>> In any case, you'll want to configure dkim and dmark for your mta. > >>> These assist the net in assuring you and everyone else that what you > >>> receive, and what you send is legit. > >>> > >>> Spam is a never ending battle. Expect to need to work on your > >>> configurations and approaches from time to time as the months and years > >>> go by. > >>> > >>> If this sounds daunting, that's probably good. It's not a trivial task, > >>> but it can be fun and certainly can be rewarding. I certainly have no > >>> interest in giving up my setup for some service somewhere else. > >>> > >>> hth > >>> > >>> Janina > >>> > >>> > >>> > >>>-- > >>> > >>>Janina Sajka, Phone: +1.443.300.2200 > >>> sip:janina@xxxxxxxxxxxxxxxxxxxx > >>> Email: janina@xxxxxxxxxxx > >>> > >>>Linux Foundation Fellow > >>>Executive Chair, Accessibility Workgroup: http://a11y.org > >>> > >>>The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) > >>>Chair, Accessible Platform Architectures http://www.w3.org/wai/apa > >>> > >>>_______________________________________________ > >>>Speakup mailing list > >>>Speakup@xxxxxxxxxxxxxxxxx > >>>http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup > >>> > >>-- > >>Your life is like a penny. You're going to lose it. The question is: > >>How do > >>you spend it? > >> > >> John Covici > >> covici@xxxxxxxxxxxxxx > >>_______________________________________________ > >>Speakup mailing list > >>Speakup@xxxxxxxxxxxxxxxxx > >>http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup > > _______________________________________________ > Speakup mailing list > Speakup@xxxxxxxxxxxxxxxxx > http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup -- Janina Sajka, Phone: +1.443.300.2200 sip:janina@xxxxxxxxxxxxxxxxxxxx Email: janina@xxxxxxxxxxx Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Accessible Platform Architectures http://www.w3.org/wai/apa _______________________________________________ Speakup mailing list Speakup@xxxxxxxxxxxxxxxxx http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
