Enable dovecot master users.

see #96

modoboa_installer/scripts/files/dovecot/conf.d/10-auth.conf

@@ -54,7 +54,7 @@
 # support for it), you can specify the separator character here. The format
 # is then <username><separator><master username>. UW-IMAP uses "*" as the
 # separator, so that could be a good choice.
-#auth_master_user_separator =
+auth_master_user_separator = *
 
 # Username to use for users logging in with ANONYMOUS SASL mechanism
 #auth_anonymous_username = anonymous

modoboa_installer/scripts/files/dovecot/conf.d/auth-sql.conf.ext

@@ -9,6 +9,13 @@ passdb {
   args = /etc/dovecot/dovecot-sql.conf.ext
 }
 
+passdb {
+  driver = sql
+  args = /etc/dovecot/dovecot-sql-master.conf.ext
+  master = yes
+  pass = yes
+}
+
 # "prefetch" user database means that the passdb already provided the
 # needed information and there's no need to do a separate userdb lookup.
 # <doc/wiki/UserDatabase.Prefetch.txt>