Sendmail: Flush specific messages from mail queue

Thanks
http://actychen.blogspot.com/2006/11/sendmail-flush-specific-messages-from.html

You can flush the sendmail queue by this command.
If is useful for check the status of mail server.

1. Flush all

# /usr/sbin/sendmail -q -v

2. Flush specific domain

# /usr/sbin/sendmail -qR pippo.it -v