On Wed, 02 Aug 2006 11:36:34 -0400, Robert Fitzpatrick
<lists@webtent.net> opined:
> On Wed, 2006-08-02 at 11:11 -0400, David Cary Hart wrote:
> > However, if
> > you have a non-standard reverse pointer to your domain with
> > adequate TTL 
> 
> non-standard reverse pointer? Our TTL is 300, is that 'adequate'.
> 
> P.S. - sorry for the direct message David.
> 
I'll digress a tad. The common example is
dot-quad-ip-address.se.biz.rr.com. Not all of bz.rr.com is static. If
you have a static IP and request a non-standard pointer you would
change the rDNS to something like "mail.mydomain.tld" that is a
non-standard unique reverse pointer. Please note that you then need
to add an A record for the host->to->IP address.

No. A 300 second TTL is not adequate. SORBS requires 12 hours. We
require three hours but we are more flexible than SORBS.

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