[Dovecot] no auth attempts: log

Hello,

is there any option that could disable such log :

Mar 2 16:47:31 imap dovecot: imap-login: Disconnected (no auth attempts): rip=127.0.0.1, lip=127.0.0.1, secured, port=143 Mar 2 16:48:31 imap last message repeated 2 times Mar 2 16:49:32 imap last message repeated 2 times Mar 2 16:51:02 imap last message repeated 3 times Mar 2 16:52:02 imap last message repeated 2 times

Thanks.