Den 06.05.2026 22:23, skrev Bill Cole via Postfix-users:
On 2026-05-06 at 16:00:53 UTC-0400 (Wed, 6 May 2026 22:00:53 +0200)
Håkon Alstadheim via Postfix-users <[email protected]>
is rumored to have said:
[...]
Ah, I think I may have been unclear, that is an excerpt from the DKIM
header, captured in a BCC before it leaves my site. In full:
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple;
d=alstadheim.priv.no;
There's the problem right there: the 'simple/simple' canonicalization
is not a useful part of the DKIM specification.
Switch to 'relaxed/relaxed' and your troubles will end.
Thanks, seems obvious in hind-sight, but I didn't know where to begin
looking at this.
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