Howto check number of emails in the mail queue: exim -bpc To check the email ID, sender and receiver of the each email: exim -bp | more To delete frozen emails from the mail queue, execute: exim -bp | grep ‘frozen’ | awk ‘{print $3}’ | xargs exim -Mrm similarly, to delete emails sent using [...]

Question: I’m using Exim mail server under CentOS Linux. How do I remove all messages from the Exim mail queue using a shell prompt? Answer: Exim is a mail transfer agent (MTA) used on Unix-like operating systems. It aims to be a general and flexible mailer with extensive facilities for checking incoming e-mail.