LMTP in PMG

I'm not familiar with that kind of setup (It sounds to me that Dovecot would offer the submissions service - the user sent their mails to dovecot (e.g. on port 587 (or using BURL) and Dovecot then relays it to an upstream server (e.g. PMG) - but dovecot can relay to smtp-services as well [0] ?)

Anyways you can edit the postfix config for PMG using the service configuration templates (see [1]) - and can create an lmtpd in master.cf

I hope this helps!

[0] https://doc.dovecot.org/admin_manual/submission_server/
[1] https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#_service_configuration_templates
 
Is it possible to let PMG deliver mail with inet LMTP? I have a Dovecot box with Dovecot submission, meaning I don't need an MTA for anything other than LMTP.

Yes - it´s possible.

I am testing around some days with lmtp-delivery in PMG.
in my environment there are two PMG als mx servers and behind there will be an dovecot server.
The pmg should deliver with lmtp and dynamical address verification.

For testing purpose you only have two change the "smtp"-keyword in /etc/postfix/main.cf of the "relay_transport" option to "lmtp".

I have placed a enhancement request in Bugzilla:
https://bugzilla.proxmox.com/show_bug.cgi?id=2438

Please feel free to look there for some more informations.
 
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Reactions: Stoiko Ivanov
Yes - it´s possible.

I am testing around some days with lmtp-delivery in PMG.
in my environment there are two PMG als mx servers and behind there will be an dovecot server.
The pmg should deliver with lmtp and dynamical address verification.

For testing purpose you only have two change the "smtp"-keyword in /etc/postfix/main.cf of the "relay_transport" option to "lmtp".

I have placed a enhancement request in Bugzilla:
https://bugzilla.proxmox.com/show_bug.cgi?id=2438

Please feel free to look there for some more informations.
I saw your patches on Bugzilla. Cool stuff! Exactly what I need.