# This is used to check the existance of email addresses (so return *something* for existing addresses, and nothing for others).
# It is also used to check ownership, mapping email addresses to usernames - however, in my setup, the email address is the username.
user = vmail
password = {{ postfix.dovecot.mysql_password }}
hosts = localhost
dbname = vmail
query = SELECT username FROM users WHERE username='%s' AND active = '1'