Ask HN: Is there a Gmail DNS resolver outage happening?

Bender · on Aug 3, 2022

This this close to what you are seeing?

    dig +short -t mx gmail.com | sort -n
    5 gmail-smtp-in.l.google.com.
    10 alt1.gmail-smtp-in.l.google.com.
    20 alt2.gmail-smtp-in.l.google.com.
    30 alt3.gmail-smtp-in.l.google.com.
    40 alt4.gmail-smtp-in.l.google.com.

pmlnr · on Aug 3, 2022

Not incoming to gmail; going out to other domains.

Bender · on Aug 3, 2022

Ah, apologies I misunderstood. Outbound email from gmail appears to work for me. Perhaps google's servers are having trouble reaching the domain you are sending to or maybe a specific cluster you are connecting to are having an issue.

Does your domain look ok in the EDNS tester [1] and in the delegation tester? [2] Refresh the delegation tester a couple times as their timeout is really short.

Edit: I forgot to add the MX toolbox [3]

[1] - https://ednscomp.isc.org/ednscomp?zone=

[2] - https://www.whatsmydns.net/

[3] - https://mxtoolbox.com/

proactivesvcs · on Aug 3, 2022

I've had some clients contact me because they can't email GMail accounts. They're getting bounces claiming DKIM failures when DKIM is working fine; could be related.