Hi,
after fighting Dovecot almost every step of the way, I have finally gotten most of the functions configured on a customer box (used Cyrus on a previous install, but it was dropped from SLES 12 ...)
The mail server setup uses LDAP for user authentication, has a central maildir tree (.../dovecot/maildir/<USER>/...) that is used for all users' mail, sieve is also running well. The users themselves are just virtual users, they do not have a local home directory or anything.
I was now trying to get Quota to work ... Looking at the Wiki more or less showed the same "spotty" results of the rest of the Wiki. Fine for anybody that needs the documentation just as a reference, but somewhat lacking for someone that does not have experience in setting up Dovecot. I tried following the wiki, as well as checking on other web pages I came across.
In order to keep the setup simple, and not have to jump through hoops to set up any SQL backup etc., I tried using a file-based storage of the quota entries, as in:
dict { quota = file:/data/dovecot/db/quota.db }
I also added quota entries in the other places I believe are necessary, and set up a rule like this:
plugin { quota_rule = *:storage=1G quota_rule2 = Trash:storage=+100M }
I got through dovecot restart without errors, and IMAP still answers. But attempting to do a recalculation of the current quota usage ends up with this error:
doveadm(root): Error: chdir(/root/) failed: Permission denied (euid=479(dovecot) egid=478(dovecot) missing +x perm: /root, dir owned by 0:0 mode=0700) doveadm(root): Error: chdir(/root) failed: Permission denied
It looks like dovecot doesn't actually attempt to look at the central maildir, but instead seems to attempt to enter the current user's homedir (which, in this case, is root).
What am I (possibly) missing here? Is this way of setting it up even viable? While I need a general per-user-quota, I also need the ability to overwrite each user's default quota ... is there any recommendable more detailed documentation on how to set up quota?
Thanks, -garry