Remember yesterday, when Google decided all the mail I was trying to send users – personal mail, one to one correspondence – was actually bulk email spam?

Today it’s decided that I don’t meet IPv6 authentication standards. Except WE DON’T EVEN RUN IPv6.

Does ANYONE know what those clowns are doing over there? I mean seriously, what are they doing?

----- Transcript of session follows -----
... while talking to gmail-smtp-in.l.google.com.:
DATA
<<< 550-5.7.1 [2601:8:9740:1300:da50:e6ff:fe55:2303] Our system has detected that <<< 550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR <<< 550-5.7.1 records and authentication. Please review <<< 550-5.7.1 https://support.google.com/mail/?p=ipv6_authentication_error for more <<< 550 5.7.1 information. rc8si3266778pdb.83 - gsmtp 554 5.0.0 Service unavailable Reporting-MTA: dns; murkworks.net Received-From-MTA: DNS; murkworks.net Arrival-Date: Thu, 18 Dec 2014 09:26:44 -0800

eta: That turned out to be a one-off, with Google reverting to the rejected-as-spam error. Until now! When it's rejecting mail as "too much mail being sent." We've sent like 20 MESSAGES ALL MORNING, most of those test messages, all of them bouncing.

<10 MESSAGES AN HOUR IS NOT A MAIL BOMB. JFC GOOGLE WHAT.

421-4.7.0 [173.160.243.46 15] Our system has detected an unusual rate of
421-4.7.0 unsolicited mail originating from your IP address. To protect our
421-4.7.0 users from spam, mail sent from your IP address has been temporarily
421-4.7.0 rate limited. Please visit
421-4.7.0 http://www.google.com/mail/help/bulk_mail.html to review our Bulk
421 4.7.0 Email Senders Guidelines. ry9si11359491pbc.147 - gsmtp

eta2: Okay. Between getting Comcast to revert some of their internal network changes (and marking us DO NOT INCLUDE) and figuring out how Google was reacting badly to them, we seem to be able to deliver mail to Google again. Google never did answer or even acknowledge queries tho', and their solution pages were a combination of useless and irrelevant.

Wow, this was not how I wanted to spend all day.