On 3/25/14, 11:23 AM, John Levine wrote:
Large mail providers all agree that v6 senders need to follow good
mail discipline, but are far from agreeing what that means. It
certainly means proper rDNS, but does it mean SPF? DKIM on all the
mail? TLS on the connections? At this point, I don't know and
neither does anyone else. Fortunately we have at least another decade
of full IPv4 mail connectivity to figure it out.
So, what's everyone's feelings about a rather large provider who blocks
IPv6 e-mail that has no RDNS, even though the sending domain has SPF
records allowing the block, and proper DKIM set up?
*looks directly at Google*
Nothing like poorly thought out policy to break a rather successful IPv6
roll-out for multiple customers.
--
Brielle Bruns
The Summit Open Source Development Group
http://www.sosdg.org / http://www.ahbl.org
