Re: Re: Re[2]: Website and mail problems...

[MJ Ray]

David Wetzel <dave@turbocat.de> wrote:
> How about implementing some checks like we do?
> http://www.turbocat.de/help/antispam/

Please, don't use all of those.  Some are offensively broken.

Checks 1.2 (no ISP mail relaying for some webmail domains),
1.3 (SPF, which also breaks some legitimate mail relaying) and
1.4 (using blacklists to reject mail) will cause many false positives.
For example, even sbl-xbl frequently lists new ISP mailservers and things
like that (at least spamcop wasn't mentioned...), and some of the biggest
and worst ISPs are changing their email services to domains like those
mentioned (BT with Yahoo, Sky with Google, and so on).

Check 2.1 needs much care to avoid false positives.

-- 
MJR/slef