Incorrect ARC signature on emails

Lafiel Elentari via dovecot <[email protected]> Sat, 25 Apr 2026 21:30:30 +0300

Newsgroups	gmane.mail.imap.dovecot
Message-ID	<[email protected]>

Hello.

On the mail server, I configured addition of the
`Authentication-Results` header with authentication check results.
I noticed that emails from the dovecot.org server have an incorrect ARC
signature:
Authentication-Results: ...;
        dkim=pass header.d=dovecot.org header.s=... header.b=...;
        dkim=fail ("body hash did not verify") header.d=... header.s=... header.b=...;
        arc=reject ("signature check failed: fail, {[1] = sig:dovecot.org:reject}");
        spf=pass (...: domain of "[email protected]" designates ... as permitted sender) smtp.mailfrom="[email protected]";
        dmarc=pass (policy=reject) header.from=dovecot.org
```

-- 
Best regards,
Lafiel Elentari
mailto:[email protected]

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