[wplug] OT Spam Filtering

[DK]

On Thu, Jul 17, 2008 at 11:24 AM, Michael Semcheski
<mhsemcheski at gmail.com> wrote:
> On Thu, Jul 17, 2008 at 11:03 AM, DK <wplug at curlynoodle.com> wrote:
>> Sorry for the off-topic post, but I need a better spam filter for
>> Outlook.  I used SpamBayes for awhile, and even made a donation to PSF
>> early on.  However, in recent months it made Outlook very unstable and
>> even worse of an application than MS intended.  Anyone have experience
>> with SpamAid, SpamBully, or have another suggestion?
>
> I'll just list my experience here which probably isn't compatible with
> what you are doing, but may give you some ideas.  This is my first
> mail server, and I'm glad it is working well now.
>
> When someone tries to send me an email (via exim), there are a few
> sanity checks that go on first.  Is there reverse DNS for the sending
> SMTP server?  Is everything well formed and in compliance with the
> relevant RFC's?  If not, the message gets greylisted and usually dies
> there.  If the mail server retries while the message is greylisted, it
> gets delivered.  Usually the spammers give up easilly.
>
> If a message is delivered, it is scored by SpamAssassin.  If the
> threshold is above a certain level, it goes into a spam folder.
>
> Otherwise, if everything goes well, it gets delivered to my inbox.
>
> Before I set up this spam filtering, I was receiving about 500 spams
> per day.  Now, I get about 30 spams per day, with one or two making it
> to my inbox per week.
>
>
> As another point, I can say that my University uses Postini for their
> spam filtering, and I'm very happy with it.  One or two false
> positives a year, and probably one or two spams that get to my inbox
> per year.   I don't know what they pay for the service, but its
> probably worth it.

Thanks for the reply Mike.  I can appreciate the proper methods to
deal with spam.  However, I do not currently have the ability to
change the server.  Rather, I need a short-term solution for execution
on the client.

Dave