Well, I solved it by passwd-file userdb and maintaining user list in /data/vmail/global/users file.

Kind regards, Milo

Dne 2018-08-30 v 10:15 Miloslav Hůla napsal(a):

One day, I'll use the LDAP. But infrastructure I got is quite neglected and some older admins is hard to convince to innovate. Just, aaaaah :)

I read whole documentation related to userdb a and passdb. Easy to understand with relation to IMAP or POP3 access. But what I didn't understand is relation to LMTP. Which one is used and when for successful delivery.

I'll try to move those settings as global.

Thank you, Milo

Dne 2018-08-30 v 09:32 Aki Tuomi napsal(a):

...

Is there some reason why you cannot use LDAP as userdb? Those uid / gid / home parameters can be also provided as global settings like

mail_uid=vmail

mail_gid=vmail

mail_home=/data/vmail/user/%n

Aki

On 29.08.2018 23:12, Miloslav Hůla wrote:

...

Hi,

I have the Dovecot (2.2.27-3+deb9u2) with LMTP and Postfix. Static userdb:

userdb { driver = static args = uid=vmail gid=vmail home=/data/vmail/user/%n allow_all_users=yes }

and passdb by LDAP, only to verify IMAP user password by bind.

Problem is, when someone sends email to non-existent@mydomain.tld, Dovecot automatically creates its home directory and Maildir.

Is there any way how deliver only when /data/vmail/user/%n directory already exists, and reject otherwise?

When I remove allow_all_users=yes, LMTP stops to deliver at all with 550 code. I probably understand why, but I cannot figure how to solve it. I cannot use LDAP to user lookup.

Milo