Re: Incorrect ARC signature on emails

Lafiel Elentari via dovecot <[email protected]> Sat, 25 Apr 2026 23:40:01 +0300

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

Hello.

This header is added by the Rspamd spam filter:
https://docs.rspamd.com/modules/milter_headers/#authentication-results

I encountered the same error when forwarding emails on another mail
server. I was able to resolve the error with this `arc.conf`
configuration:
```
...
sign_inbound = false;
sign_local = true;
use_domain_sign_local = "example.com";
...
```

Where `example.com` is the domain from which the email is forwarded.

On Saturday, April 25, 2026, 10:44:17 PM, Benny Pedersen via dovecot
<[email protected]> wrote:
> Lafiel Elentari via dovecot skrev den 2026-04-25 20:30:

> what software add this info ?

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

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