how to set up an RBL

[Antony Stone]

On Thursday 28 August 2003 5:46 pm, Furnish, Trever G wrote:

> I like the way spamcop seems to work - auto-remove a site after 2 days if
> it hasn't been resubmitted - but I'd prefer a longer timeout since many
> MTAs retry delivery for up to 5 days.

That actually sounds quite an advantageous combination to me.

If a site remains in the RBL because it genuinely belongs there, then emails
continue to be blocked.

If a site gets removed from the RBL because it no longer belongs in the list,
then currently queued legitimate emails will be successfully delivered.

I guess it all comes down to the criteria for including a site in the RBL,
and those for removing it - so long as those are sensible, then the above
combination of timings (ie mailserver timeout being longer than the
autoexpiry time for no-longer-needed entries in the RBL) seems to cause least
disruption to the delivery of valid email (which is most people's biggest
criticism of RBLs), IMHO.

Antony.

--

The first ninety percent of an engineering project takes ninety percent
of the time, and the last ten percent takes the remaining ninety percent.