unix_listener /var/spool/postfix/private/lmtp { mode = 0660 user = postfix group = postfix }DO NOT do this! That socket is for the listen side of the qmgr<->lmtp communication. The Dovecot LMTP socket needs to be outside the Postfix-private namespace.
Viktor,
Can you elaborate more on this? Why should this not be done? Downsides?
This is the recommended method in the dovecot docs. Or am i misunderstanding
something?
https://doc.dovecot.org/configuration_manual/howto/postfix_dovecot_lmtp/
