[colug-432] smtp filters

[Rick Hornsby]

I ran spamassassin years ago and it was really good.  Far better than any
client "junk" filtering or Barracuda Spam FIREWALL! (Sunday! Sunday!
Sunday!) nonsense.  I typically ran a handful of the extra filter sets and
updated them every couple of months.

One of the things that I really liked besides that it worked well, was that
it showed the scoring method used to classify each message, allowing me to
make small adjustments as I needed.  That is one thing that always annoys
me about client junk filtering in Apple Mail, Outlook etc.  No idea why it
classifies a message as junk when it shouldn't and vice versa.


On Mon, Apr 22, 2013 at 3:07 PM, Rob Stampfli <res at colnet.cmhnet.org> wrote:

> On Mon, Apr 22, 2013 at 09:36:04AM -0400, Scott Merrill wrote:
> > I've been kicking around the idea of migrating my email off of Google
> > Apps. I'd lose a fair bit of integrated functionality on which I've
> > come to rely, I realize, but I think there may be some long-term
> > benefits to being responsible for my own communications.
>
> I use sendmail as the MTA for my cboh.org domain, since that's what
> I've always used and know my way around.  Postfix is probably a similar
> setup.  I have two MX addresses, homed to virtual servers for the
> cboh.org domain.  When a message is received for me, it is forwarded
> to a local MTA on my local LAN.  The forwarding is done on an unusual
> port and relies on my local external IP address not being vary labile,
> but that has not been a problem here since I switched to WOW, even
> though it is nominally a dynamic address.  (It did become a problem
> with Insight -- long story -- and was the driving force behind my
> switching providers.)  The LAN server's /var/mail directory is then
> mounted on my local Linux boxes via NFS, or is directly accessible
> via ssh/mutt.
>
> I use a combination of greylisting, DNSBL, pre-greeting, and clamav on
> the virtual servers.  Have toyed with the idea of adding something like
> spamassassin, but never gotten around to studying it enough to understand
> how to incorporate it.  Also, even if someone might devine the private
> port number, the local server is further protected by rules that only let
> it respond to the IP addresses of my external servers.
>
> On the whole, it works well, but it does come with a significant amount
> of administrative overhead.  I'm fairly sure, though, that no one is
> reading my emails over my shoulder.
>
> Scott, if you have any interest in what I'm doing, or would like to see
> how all of this is achieved in a sendmail configuration, feel free to
> contact me off-line.
>
> Rob
> _______________________________________________
> colug-432 mailing list
> colug-432 at colug.net
> http://lists.colug.net/mailman/listinfo/colug-432
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.colug.net/pipermail/colug-432/attachments/20130422/9aefcec4/attachment-0001.html