[Dovecot] LMTP/Sieve/sendmail path

[Andreas Schulze]

Hello,

I have a system using postfix multi instance feature.
The first, main postfix-instance is a nullclient as suggested by
http://www.postfix.org/MULTI_INSTANCE_README.html#split

The second instance is for real use. Postfix receive mail and handover them
to the dovecot lmtp server.

Thats working.

The lmtp server supports sieve. One account has activated a vacation rule.
So while delivering a mail to this account, dovecot creates a new mail based on the vacation rules.

*This one* fail. It is injected in the main postfix instance, which is wrong in this case.

I tried to start dovecot with an additional environment MAIL_CONFIG=/etc/postfix-instance2
and enabled alternate_config_directories in main.cf of the first insance.
( http://www.postfix.org/postconf.5.html#alternate_config_directories )
I also configured the userdb to return an extrafield userdb_mail_config=/etc/postfix-instance2.

But all produce strance postfix errors I never saw in my last 6 years as postfix-admin.

Would it be possible to configure dovecot lmtp server to use an external smtp-server to submit
new mails ?

Any other Ideas ?

Thanks
Andreas

-- 
Andreas Schulze
Internetdienste | P252

DATEV eG
90329 Nürnberg | Telefon +49 911 319-0 | Telefax +49 911 319-3196
E-Mail info @datev.de | Internet www.datev.de
Sitz: 90429 Nürnberg, Paumgartnerstr. 6-14 | Registergericht Nürnberg, GenReg Nr.70
Vorstand
Prof. Dieter Kempf (Vorsitzender)
Dipl.-Kfm. Wolfgang Stegmann (stellvertretender Vorsitzender)
Dipl.-Kfm. Michael Leistenschneider
Jörg Rabe v. Pappenheim
Dipl.-Vw. Eckhard Schwarzer
Vorsitzender des Aufsichtsrates: Reinhard Verholen