[owncloud-devel] Mailing list should be fixed to stop invalidating DKIM signatures

interfaSys sàrl info at interfasys.ch
Wed Mar 9 11:46:40 GMT 2016


Hello Mailing List admins,

Gmail, per example, adds a DKIM signature with every message it sends.
Hosts which block emails based on that knowledge will not be able to
receive messages sent from Gmail which go through this MLM, because it
modifies the messages and thus invalidates the signature.

It's a known fact and there is even a RFC [1] describing what can be
done about it.
The fix can't involve the senders or receivers as most will not be able
to make any changes in relation to DKIM. One simple solution would be
for the MLM to verify the signature and delete it, but I'll let admins
explore the documentation to find what works best for their environment.

Thank you

Olivier


[1] https://tools.ietf.org/html/rfc6377


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