[Dovecot] Small issue with "submission host"

[Raphael Ordinas]

Actually, LMTP inet listener is only used for delivery purpose.
I separated the MTA and the MDA on distinct hosts.
Incomming mails are received by the MTA which proceed to some check 
(anti-virus, spams, and aliases) and transport them to the MDA with LMTP.

Maybe I misunderstood something, but i don't see why LMTP is involve in 
a sieve forwarding process (or stuff like non delivery mail return) .
According to comments in the "15-lda.conf" file :

    # Binary to use for sending mails.
    #sendmail_path = /usr/sbin/sendmail

    # If non-empty, send mails via this SMTP host[:port] instead of
    sendmail.
    submission_host = smtp.mydomain.tld

If you don't use the 'submission_host' option, dovecot will forward mail 
with '/usr/sbin/sendmail' binary which use the forwarders you tell it to 
use, am i right ?

Regards,

Raphael

Le 26/10/2012 11:00, Thomas Leuxner a écrit :
> On Fri, Oct 26, 2012 at 10:51:52AM +0200, Raphael Ordinas wrote:
>
>>     service lmtp {
>>        inet_listener lmtp {
>>          address = 172.0.0.1
>>          port = 2525
>>        }
>>     }
> Right, so you are using network sockets with LMTP. Probably does not
> answer the question why it is not working with the 'submission_host',
> but is there a reason why the redirects are not reinjected this way?
>
>>     submission_host = smtp.mydomain.tld
> Regards
> Thomas