On Tue, 2012-01-17 at 09:36 +0100, Jan-Frode Myklebust wrote:

I now have "mail_home = /srv/mailstore/%256RHu/%d/%n". Is there any way of asking dovecot where a user's home directory is?

No..

It's not in "doveadm user":

$ doveadm user -f home janfrode@lyse.net $ doveadm user janfrode@tanso.net userdb: janfrode@tanso.net mail : mdbox:~/mdbox quota_rule: *:storage=1048576

Right, because it's a default setting, not something that comes from a userdb lookup.

Alternatively, is there an easy way to calculate the %256RHu hash ?

Nope..

Maybe a new command, or maybe a parameter to doveadm user that would show mail_uid/gid/home. Or maybe something that dumps config output with %vars expanded to the given user. Hmm.