-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I don't know if it does - I've found our servers appear to have no problem.
Gmail uses a number of things like SPF etc. to define if something's Spam. Did you check that this designates the IPv6 address as a permitted sender? Do your SMTP servers have reverse IPv6 addresses? Do you use DKIM? Just a few suggestions... Kind regards, Olivier On 30/05/2013 16:46, Marco d'Itri wrote: > I have noticed in the last few days that mail sent to gmail from a > significant number of our servers (both shared hosting / mail relays and > dedicated servers of our customers) with IPv6 connectivity is delivered > to the spam folder. > If there has been spamming activity (as a result of some security > incident, I am not an ESP) from some of these servers then it is not > recent. > The reputation problem is tied to the IP address, because after adding > a new one in the same /64 mail is delivered to the inbox. > > > (OTOH, recently I have received significant complaints from customers > about gmail rejecting connections or delivering to the spam folder even > long after a security incident, so this may be not specific to IPv6.) > - -- Olivier MJ Crépin-Leblond, PhD http://www.gih.com/ocl.html -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJRp28FAAoJENb2Jfn69hcjnMwH/0AP2BujLBXr+W2ybVZG0GF1 ocQC4Vd8zqVggDS17103Hdn8QjwTObgLPC+gJF9Bk0DUZWBvKqYZtyY7IGMi5zl4 EbXt3PocpZnVPxhELVD3cQkn+KV0umuYBWA9MsqEkhj1TJC39nI/65bns/XCiBR6 5ORoecyYdnY2M8wkA0kDDK8A7CENB4qQzMZjtwXuPCZudqTkqzHAtkpZgzbojOCt C8xR5BPMMrrP57vSF9IaBYuzih3mrmgE+B6dYD7InsKzCwzQXW7+gHtEJQIsgVVZ YeyBiGUILwW4hslhXiQ0GE1Mihqe2Vw8vFfQkOrLvk5KJqME7Ng11UFzqkSfCow= =7Ip1 -----END PGP SIGNATURE-----
