Hello again,
I noticed mails from the Dovecot list break DKIM signatures.
Perhaps it's something to look at?
Most lists I'm on manage to pass messages with DKIM intact.
Authentication-Results: abc.abc.abc;
dkim=fail (rsa verify failed) header.d=mrstuudio.ee header.s=mr header.b=M03Fp5lE;
dmarc=pass (policy=none) header.from=dovecot.org;
spf=pass
Thanks,
Reio