How to delete messages from the Sendmail queue

First check the size of the queue:

# mailq | tail -n 1
Total requests: 35971

Use this command to delete the mess:

find . -name "[d,q,Q,D]f*" -exec grep -nil "[email protected]" {} \; | xargs rm

Reference

• https://routingtheworld.wordpress.com/2012/04/19/delete-messages-from-sendmail-queue-based-on-an-email-address/