
Thunderbird incorrectly handling multiple DKIM signatures
This appears to have only started happening recently. My emails have two DKIM signatures attached. One is for the relevant domain and the other is for the provider of the mail relay service. Both are valid. However, Thunderbird (and the DKIM add-on) flags the emails as not being signed by the sender domain. SFAIK this is incorrect and not in accordance with the relevant RFC. Does anyone know anything more about this issue?
Chosen solution
You may contact the extension author.
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Chosen Solution
You may contact the extension author.
Thanks, you’re obviously right. I got the impression the issue related to a header reported by Thunderbird, but on checking it is all to do with the add-on.