RE: [cobalt-users] RE: Block List Tip

["Dan Kriwitsky" <list3@xxxxxxxxxxxxxxxxxxxx>]

> > Instead of appending that the way it is, I edited
> > sendmail.cf R<REJECT>
> > $* line so when /etc/mail/access says simply REJECT it
> > sends a custom
> > message to keep the access file smaller. That way I
> > can simply replace
> > all the instances of "ERROR:550 "Blocked by 
> > http://www.stearns.org/sa-blacklist/""; with simply REJECT.
> 
> I'm interested to know what you put in your custom message as 
> I run a DNSbl in our sendmail.cf with a redirect to a page to 
> explain the reason for rejection. Is this the same?

I redirect to my own page that explains the blocklists I use and the
other reasons for rejections based on my local access list.

> 
> What type of performance hit would you have if you threw all 
> the listed addresses into your sendmail access file?

I think it would be less than doing the lookup on the various DNSBL for
each one. I'm not sure how large the access file gets before there is a
performance hit.
-- 
C2003 Dan Kriwitsky

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