On 7.5.2012, at 22.21, Dr Josef Karthauser wrote: > password_query = SELECT user, domain, password, "masteruser" as master, > "masterpass" as pass, proxy, "remoteimap.server" as host FROM mailboxes \ > WHERE user = '%n' AND isMailbox AND active AND domain = '%d' > > I imagined that I could switch the proxy per user by setting proxy='n' or > proxy=null for any users that want to be local, and proxy='y' for any users > that I want to forward on to the original server. > > It doesn't appear to work that way though. Irrespective of the proxy value > dovecot appears to try and proxy all users.
If you return a host setting, Dovecot handles it as login referral: http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Host So you need to return proxy=null and host=null. If that doesn't seem to help, set auth_debug=yes and verify from the logs that neither of them are returned by auth process.
