sieve redirect to foreign email gets “Relay access denied”

[Alan McGinlay]

On 2014-09-23 10:22, Henry Stack wrote:
> On 22-09-2014 23:50, Reindl Harald wrote:
> [...] you need to provide more  informations about your setup and if
> possible avoid mask IP addresses - where does the smtpd live, where
> is dovecot and how did you configure the relay at all what postfix
> version? in case of a recent version -> smtpd_relay_restrictions is
> configured?
> 
> ok here comes the  data
> the sieve rule is simple
> 
> if header :contains ["subject"] ["redirect"]  {redirect
> "henry at gmail.com"; stop;}
> 
> first of all the main issue is the sieve "redirect" to a email
> address on a foreign server. In our case gmail.
> (sieve is a part of dovecot, and I found no possibility to make sieve
> more verbose.)
> I can make postfix verbose but it just say that relay is not 
> permitted.
> 
> to test sieve and the rule I send a email from henry at live.de
> (Hotmail) to my account on the server. henry at example.net and expect it
> to be redirected to henry at gmail.com
> 
> The only interesting line in the log-file is still
> NOQUEUE: reject: RCPT from mail.example.net[62.78.xxx.xxx]: 554 5.7.1
> <henry at gmail.com>: Relay access denied; from=<henry at live.de>
> to=<henry at gmail.com> proto=ESMTP helo=<mail.example.net>
> 
> it say that sieve is trying to make a email FROM henry at live.de TO
> henry at gmail.com and send it via  mail.example.net.
> *this is crazzy.*
> I think that this is the reason why I get the relay not permitted.
> afaik it should envelope the email using  henry at example.net
> 
> Even I transform my own server in a open relay and send the email
> like sieve want it to be redirected it will be rejected by the
> destination server because my server is no authority for gmail.
> 
> Does somebody know how I can teach sieve to send as envelope ?

This looks like a postfix configuration issue, nothing to do with 
dovecot or sieve. You should really ask on a postfix list but what does 
your postfix main.cf look like?