On Wed, Jun 03, 2015 at 08:07:57PM -0700, Matthew Hall wrote: > Hello, > > I can confirm your claims. When I enabled IPv6 on my mail server Google began > dropping or severely graylisting 100% of the mail until the IPv6 subnet was > added to the SPF record. This needs to get fixed or the IPv6 outbound SMTP > has > to be disabled or Google users will lose tons of mails from the list. > > Matthew.
See also: https://support.google.com/mail/answer/81126 https://support.google.com/mail/answer/81126?p=ipv6_authentication_error&rd=1#authentication There is a specific section regarding IPv6. Matthew.
