[Dovecot] Recent message flag unavailable ?

Hello,

When a message is copied or newly-delivered to a folder, it does not have the "recent" flag set. Is there something in the configuration to activate it ?

Thanks.

# dovecot -n # 1.0.9: /usr/local/etc/dovecot.conf protocols: imap login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login mail_location: mbox:~/mail:INBOX=~/mail/INBOX:INDEX=/var/cache/dovecot mbox_write_locks: fcntl auth default: passdb: driver: pam userdb: driver: passwd

The MUA which shows it is Alpine 0.999999.

Nicolas