I host a mail server for a few domains I own and/or manage. I have
used spamassassin successfully for about 10 years. It does a pretty
good job of finding spam, but when a few "spams" get sent from an
address it graylists that address, and I have to go look at the spam
folder where I send everything marked as spam. I don't delete spam
for my users, i just put a flag in the header that says it's spam, if
the probability of spam is over a certain limit it takes the email,
changes the subject line and makes the original email an attachment
with the new email stating why it's spam. I figure with this setup
the users can set up their own sorting. I get well over 100 spam
messages a day through my server for the 1/2 dozen users I have. I
personally get about 100 spams a day into my google account, but
that's the one I use when I sign up for stuff to try to keep all my
spam messages in one place. I have heard of people using a
sacrificial email address to use when signing up for things so that
all the spam goes there and the legitimate conversations go to the
real email address. The problem is when a list like this gets hacked
then the spam starts coming to the legitimate email. I wish there
were some way to verify a new list member as not a spammer before
giving them reading or writing rights.
Brian
KF7OVD
On Tue, Apr 22, 2014 at 8:46 AM, Gary Smith <Gary@ka1j.com> wrote:
> I have a couple domains and the commercial spam filter was snagging
> good emails and they were unavailable to me. Asking around I learned
> of spambayes, an open source spam filter you train to understand what
> you think is spam. It is free from here:
> http://spambayes.sourceforge.net/
>
> It is similar to artificial intelligence in that it comes brain dead
> and you have to tell it what you see each piece of email as. Your
> answer will add a "X-header" designator and based on that designator
> your email program will filter with it what you wish.
>
> It takes only a few days of training to be 99.9% correct and it uses
> all of the information in the raw data to make its evaluation. Once
> its trained you leave the training mode and then make corrections on
> a rare per-case basis. The advantage is you can (wisely) choose to
> keep the rejected emails for your final perusal & then delete & this
> way you never lose an email but don't have to see spam in your face
> either.
>
> I told my ISP to turn off the filtering and I easily get 100 SPAM a
> day but only see 1-2 every month out of that. Some emails form forum
> posts like this will be mis-identified 1-2 times a month also but
> that's why you keep & use a spam filter so you can salvage the good
> emails and then train spambayes that it was a good email.
>
> Lastly, I have been using Pegasus for email since 1995, which is free
> and specifically designed to not let trojans & viri into your
> computer. http://www.pmail.com/ there is a bit of a learning curve to
> it but I wouldn't trade it for any other emailer. I have 5 different
> email accounts and each of them forwards to Pegasus and everything
> gets filtered as I like into the folder of my choice. Some things I
> want to see and when I shut down Pegasus, then those emails go into
> their respective folders. Very tidy.
>
> Between Spambayes and Pegasus I never worry about viruses from email
> or crap like the "raunchy pics", they all get discovered and routed
> to the spam folder And both programs are free.
>
> 73,
>
> Gary
> KA1J
>
>
>
> ---
> This email is free from viruses and malware because avast! Antivirus
> protection is active.
> http://www.avast.com
>
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