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Some list mail being rejected by Gmail with IPv6AuthError #286

Closed treyharris closed 5 years ago

treyharris commented 5 years ago

I just received a message from ezmlm with the warning that some of the messages to perl6-users bounced on my provider’s (Gmail’s) side. From the bounce message, Gmail is warning:

Our system has detected that this message does not meet IPv6 sending
guidelines regarding PTR records and authentication. Please review
https://support.google.com/mail/?p=IPv6AuthError for more information.

https://support.google.com/mail/?p=IPv6AuthError suggests this is not an issue I can fix on my end.

A possible reason this is happening to me and not others: I’m using a forwarder from my email domain to my @gmail.com address. I have no idea why it’s happening for only a few of the messages sent to the list (I received someone’s reply to one of the bounced messages, for instance).

If you have a way for me to provide the entire original message in private form, so I don’t have to broadcast my forwarding details to the Internet, please let me know how.

Also, I have my CPAN and Gmail email addresses associated with my subscription so I can successfully send outgoing mail to the lists from those addresses if my client doesn’t rewrite the From: header. I’d be happy to change my incoming address on the mailing list to one of those, if the issue is at my forwarder and switching to CPAN’s would fix this—but I can’t figure out how to do so in the interface.

rspier commented 5 years ago

This should have been fixed two weeks ago. We neglected to properly configure IPv6 after a server move. Bounces are delayed because they're processed in batches.

Please do not switch to the CPAN forwarder. It will likely not result in improved performance.