mail server setup

covici at covici at
Sat Jan 9 16:52:00 EST 2016

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 at> 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 at b.c. to d at 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 at
> 		Email:	janina at
> Linux Foundation Fellow
> Executive Chair, Accessibility Workgroup:
> The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
> Chair, Accessible Platform Architectures
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you spend it?

         John Covici
         covici at

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