Re: email delays from Google

[Christopher Morrow <morrowc.lists () gmail com>]

Trey, the bees behind the hive say:
  "Please open an issue in this system:
   https://issuetracker.google.com/issues/new?component=191885";

> From what I can tell there are other folk with similar problems so
some triangulation on 'what is actually wrong here?' is in order.

On Wed, Jul 31, 2019 at 10:28 AM Trey Nolen <tnolen () internetpro net> wrote:
> We have been experiencing delays / failures receiving email from domains
> hosted by Google and *only* domains hosted by Google.
>
> This is happening to customers for whom we host the authoritative DNS
> servers.   For some reason, Google is not able to look up the MX and/or
> A record *sometimes* from our servers.
>
> Customers are getting an error like this:
> --BEGIN
> DNS Error: 49391460 DNS type ‘mx’ lookup of <domain hosted with us>
> responded with code NOERROR 49391460 DNS type ‘aaaa’ lookup of
> mail.internetpro.net <http://mail.internetpro.net>. responded with code
> SERVFAIL 49391460 DNS type ‘a’ lookup of mail.internetpro.net
> <http://mail.internetpro.net>. responded with code SERVFAIL
>
> --END
>
> In the above case, Google is saying they can't find our mail server.
> There is no AAAA record, so that part is normal.
>
> However, we have other customers who are hosting their own mail servers
> or are using relay services such as Trend Micro who are also having a
> similar issue.  The only thing these customers have in common is our DNS
> and the fact that Google is trying to send email to them.
>
> I can query Google's public servers at 8.8.8.8 and 8.8.4.4 and they
> always give the correct answers, but it seems that internally, Google is
> unable to make these lookups.   Reaching out to their support agents
> online, the agents confirm that the correct entries are in place and
> that *some* of Google's servers can't do the resolution resulting in
> sporadic email delivery.  They suggest that we reach out to the DNS
> provider to find out why (Grrr)
>
> We've also had reports from customers that the failures seem to be
> location oriented with western US emails being held up and eastern US
> emails coming through.  I can't independently confirm that, though.
>
> A full 100% of the email delivery issues have been Google hosted
> domains.   It seems that every other ISP can do the lookups just fine,
> but getting in touch with someone at Google who can troubleshoot this is
> impossible for a small ISP like us.
>
> If anyone can point me to somone at Google who could help me out, I'd be
> very thankful.
>
>
> Trey Nolen