[Dovecot] decreasing log messages

[Louis-David Mitterrand]

Hi,

Since I use "/usr/sbin/dovecot --exec-mail imap" from mutt I get a lot
of these in my syslog:

        Apr  3 11:09:33 zenon IMAP(ldm): : Connection closed bytes=36/256

Is it possible to suppress them while keeping the "remote users"
messages:

        Apr  3 10:52:05 zenon dovecot: IMAP(xxxxx): Connection closed 
bytes=9420/5976987
        Apr  3 10:52:08 zenon dovecot: imap-login: Login: user=<xxxxx>, 
method=PLAIN, ri
        p=xx.xx.xx.xx, lip=xx.xx.xx.xx, TLS

Thanks,