Le 4 sept. 2015 à 19:38, Grant emailgrant@gmail.com a écrit : […]
And yes, the warning about doveadm’s -A option thus appears to be relevant in your case.
In that case it sounds like my best options would be to either continue expunging old mail with a separate line for each user or switch to /etc/dovecot/users for user lookup and maintain a list of mail users there so I can use doveadm -A. How can I switch to /etc/dovecot/users?
Note that the warning may be obsolete for recent versions of Dovecot, in the sense that (IIRC) doveadm’s iteration upon system users might honor the first_valid_uid (and last_valid_uid) settings since several years now.
A quick look at the code tends to show this is indeed the case; of course, only Timo could tell for sure. ;-)
Should it be the case, and provided you are running a sufficiently recent version of Dovecot, you could just explicitly set those values in your configuration file, in accordance to the uids you have allocated to your mail users.
HTH, Axel