[Users] membership disabled due to bouces again..

[Ewoud Kohl van Wijngaarden]

On Sun, Jan 26, 2014 at 09:40:40PM +0200, Itamar Heim wrote:
> On 01/22/2014 11:37 PM, Gianluca Cecchi wrote:
> >Already spotted this problem before...
> >I just found that I lose e-mails
> >from Tue Jan 21 11:45:10 EST 2014
> >to Wed Jan 22 15:35:51 EST 2014
> >
> >And received only some minutes ago (22/Jan/2014 21:26 Italy Time) an
> >e-mail regarding my disabled membership apparently occurred at Mon,
> >Jan 20, 2014 at 4:11 PM so that I didn't either know before ....
> >
> >Any way to solve this? I have to mix e-mail received and archives...
> 
> moving to infra.
> yes, it takes a few emails that gmail rejects (rather than
> move-to-spam-folder) for the mail server to disable.
> 
> infra - any progress/thoughts on this?
> Gianluca - the sure alternative is any other provider than gmail
> temporarily (not a good answer, i know)

Karsten fixed forward and reverse DNS records for linode01, but I'm not
sure what their policy is on a reverse pointing to a CNAME.

$ host 2600:3c01::f03c:91ff:fe93:4b0d
d.0.b.4.3.9.e.f.f.f.1.9.c.3.0.f.0.0.0.0.0.0.0.0.1.0.c.3.0.0.6.2.ip6.arpa domain name pointer lists.ovirt.org.
$ host lists.ovirt.org
lists.ovirt.org is an alias for linode01.ovirt.org.
linode01.ovirt.org has address 173.255.252.138
linode01.ovirt.org has IPv6 address 2600:3c01::f03c:91ff:fe93:4b0d

Their policy[1] on IPv6 doesn't mention it specifically:

* The sending IP must have a PTR record (i.e., a reverse DNS of the
  sending IP) and it should match the IP obtained via the forward DNS
  resolution of the hostname specified in the PTR record. Otherwise,
  mail will be marked as spam or possibly rejected.
* The sending domain should pass either SPF check or DKIM check.
  Otherwise, mail might be marked as spam.

[1]: https://support.google.com/mail/?p=ipv6_authentication_error