Patrick Ben Koetter:
> Wietse,
>
> on mailstores (read: Dovecot) we often would like to know X-Original-To in
> order to apply SIEVE-Rules against the X-Original-To value.
If Dovecot implements RFC 3461 then it should get the
original recipient in the RCPT TO command.
RCPT TO:<address> ORCPT=rfc822;encoded-address
> Obviously it doesn't make sense to add that header and send it via SMTP/LMTP
> if a message has more than one recipient.
Well Exim does it,.... and Postfix can be made to do it with
an smtpd_recipient_restrictions PCRE pattern of:
/(.+)/ prepend X-Envelope-To: $1
> But what if we set
> mumble_destination_recipient_limit=1.
>
> Would it then be safe and possible to forward X-Original-To via SMTP/LMTP?
> Dovecot (or any other receiver) could use the information and add the header.
In that case Postfix could be changed to add the header too.
Wietse
