[Dovecot] Dovecot sending quota warning to MAILER-DAEMON

[Mathieu R.]

Hello,

i'm testing quota now, and dovecot is not sending quota warning to the
user, but to MAILER-DAEMON, wich obviously give me an error.

here is my 90-quota.conf http://paste.debian.net/50580/
dovecot 2.1.7, on debian stable

any idea ?
-- 
Mathieu R.