Re: [cobalt-users] Spam blocking

[Jeff Lasman <blists@xxxxxxxxxxxxx>]

On Thursday 29 January 2004 06:41 pm, Mark Mitchenall wrote:

> Someone else said it... take your server off the network... but also,
> if your spam software bounces mail correctly, eventually you will be
> taken off some of the lists these guys use as you're costing them
> bandwidth by bouncing the mail, although this is not always the case.

Many tests have shown this to not be the case at all.  We blocked 
(refused; no-one at this address) email for a domain that used to 
belong to an ISP.  We blocked it for a year.

Then we opened up a catchall account, and got over 3,000 pieces of spam 
a day for this domain.

It didn't seem to slow down at all that we were refusing all the mail 
for about a year.

> Also try and make an effort to report the spam which does get
> through.

I laud you for trying.  We reported all spam for over a year, until it 
became too unweildly.  Now we don't bother; we consider that a cost to 
us that we don't want to have to take on.

We block all we can (for clients who want it, and for ourselves), we 
filter the rest with SpamAssassin (also for clients who want it and for 
ourselves), and throw the rest into trash manually; it amounts to, for 
my accounts (which used to get hundreds of spams a day) only about five 
or so pieces a day.

Jeff
-- 
Jeff Lasman, nobaloney.net, P. O. Box 52672, Riverside, CA  92517 US
Professional Internet Services & Support / Consulting / Colocation
Our blists address used on lists is for list email only
Phone +1 909 324-9706, or see: "http://www.nobaloney.net/contactus.html";