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Gmail bounce unauthenticated @debian.org addresses

Hi all,

We recently discovered that Gmail started to bounce email from
mentors.debian.net with the following message:

550-5.7.26 This message does not have authentication information or
fails to 550-5.7.26 pass authentication
 checks. To best protect our users from spam, the 550-5.7.26 message has
been blocked. Please visit 550-5.7.26
https://support.google.com/mail/answer/81126#authentication for more 5
50 5.7.26 information.

My debian address is also affected, and probably others that did not
setup DKIM for their @debian.org address.

As a reminder debian.org addresses does support DKIM. After
configuration on your mail server, you can publish your DKIM public key
to db.debian.org [1][2].


[1]: https://lists.debian.org/debian-devel-announce/2020/04/msg00004.html
[2]: https://db.debian.org/doc-mail.html
Baptiste Beauplat - lyknode

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