Re: [expert] Sendmail relay confusion

[Austin L. Denyer (SysAdmin.) as root]

John Aldrich wrote:
> 
> On Tue, 15 Aug 2000, you wrote:
> > One other thing, is it worth using FEATURE(rbl)??
> >
> IIRC, the "FEATURE(rbl)" means that you will be refusing email from
> "known" spam sources and known "open relays." This is a question only
> you can answer. Do you want to accept email from known spam sites and
> open relays? If so, don't use the rbl feature. If you DON'T want to
> receive email from them, enable that feature.
>         John

Unfortunately this does have it's pros and cons.  There can be many
innocent people who use those same relays, and the rbl (Relay Black
List) blocks the lot, period.

Having said that, if the system is configured to send a 'stock' reply to
the sender, explaining that they are on rbl, then at least they then
have the option of moving to a more reputable network...

Just my $0.02...

Regards,
Ozz.