Yep, RFC 6471 implies this, though it doesn't call it out as a recommended practice.
Definitely seems like a good idea. Al -- Al Iverson - Minneapolis - (312) 275-0130 Simple DNS Tools since 2008: xnnd.com www.spamresource.com & aliverson.com On Thu, Jan 21, 2016 at 2:35 PM, Michael Wise <[email protected]> wrote: > Back In The Day, there was a BCP for shutting down a DNSBL that included > running a daily check of the IP 127.0.0.1 (which should never hit), IIRC, as > well as 127.0.0.2 (which should always return a hit); and if my memory > serves, if either criteria was different (both listed or neither listed), > the DNSBL should be flagged as not to be trusted. > > > > This is from memory, I remember a discussion … a decade or so ago? > > > > Aloha, > > Michael. > > -- > > Michael J Wise | Microsoft | Spam Analysis | "Your Spam Specimen Has Been > Processed." | Got the Junk Mail Reporting Tool ? > > > > From: mailop [mailto:[email protected]] On Behalf Of Laura Atkins > Sent: Thursday, January 21, 2016 9:13 AM > To: Lyle Giese <[email protected]> > Cc: [email protected] > Subject: Re: [mailop] Spurious 'Client host [xyz] blocked using > b.barracudacentral.org' replies > > > > > > On Jan 21, 2016, at 8:46 AM, Lyle Giese <[email protected]> wrote: > > > > It has been known that RBL's return a response to force the email admin to > look and make appropriate changes in their configuration. > > > > Yeah. It doesn’t always work, though. If a RBL is part of a scoring scheme, > mail often gets delivered anyway and the changes never get made. > > > > laura > > > > -- > > Having an Email Crisis? 800 823-9674 > > > > Laura Atkins > > Word to the Wise > > [email protected] > > (650) 437-0741 > > > > Email Delivery Blog: http://wordtothewise.com/blog > > > > > > > > > > > _______________________________________________ > mailop mailing list > [email protected] > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > _______________________________________________ mailop mailing list [email protected] https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
