On Nov 5, 2008, at 10:52 PM, Patrick MacDonald wrote:

Is there a way to limit simultaneous pop3 logins for users? Like
for a user that has pop-every-minute running on two different computers
from two different networks? If dovecot can't stop it, anyone know of a
trick I could implement?

pop3_lock_session=yes setting. You can also enable it per-user by
returning it from userdb.