Jiri Bourek bourek at thinline.cz
Sat Oct 4 06:41:27 UTC 2014

> The mail is forwarded, but no vacation response is sent, and the mail is
> not forwarded. I find the lda error like this:
>   _discarding_vacation_response_for_implicitly_delivered_message;
> _no_known_(envelope)_recipient_address_found_in_message_headers_
> (recipient=<bob.miller at hostname.domain.tld>,_and_no_additional_
> `:addresses'_are_specified)

Does the message have To: and From: headers? I recall getting the same 
(or similar) output when those headers were missing during my testing. 
Adding them fixed the issue.

More information about the dovecot mailing list