Freebsd as a mail server - good spam filtering

[Dean E. Weimer]

On 2017-04-05 12:23 pm, merlyn at stonehenge.com wrote:
>>>>>> "Christoph" == Christoph Kukulies <kuku at kukulies.org> writes:
> 
> Christoph> I' m wondering what email server solutions Freebsd server
> Christoph> operators are prefering these days.
> 
> Christoph> Especially with respect to good anti spam measures.
> 
> postfix and subscribing to mailroute.net.  It's worth a few bucks a
> month to completely outsource your spam/virus scanning.

You might also want to look into http://www.mxguarddog.com/ they use a 
token method of providing services, they can be purchased or earned 
simply by putting a link on your web site. I have been using them free 
of charge for my personal web site and mail server since 2012 with just 
have a single mailbox though. I have had pretty good results with spam, 
however it does take a few minutes for them to process messages during 
the busy times of the day sometimes. I chose to use their tagged subject 
line option instead of a quarantine for spam viruses do still get 
quarantined.

For what its worth I use Cyrus-Imapd along with SASLAuthd and Sendmail, 
access email either through my iPhone/iPad, or Roundcube in the browser. 
Roundcube has a sieve plugin that works great in redirecting the spam 
tagged items to the spam folder and is simple to manage through the web 
interface. I recently added OpenDKIM for tagging outbound email with 
DKIM keys. Though I am sure you will find almost everyone has a 
different set of tools they prefer to use.

-- 
Thanks,
    Dean E. Weimer
    http://www.dweimer.net/