Useful Exim Commands with examples
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Exim is a mail transfer agent (MTA) for UNIX and Linux systems, which is responsible for receiving, routing, and delivering e-mail messages.
1) To get the message count in the queue
exim -bpc OR exim -bpr | grep "<" | wc -l2) To list the messages in the queue
exim -bp3) To get the summary of messages in the queue (count, volume, oldest, newest, domain, and totals)
exim -bp | exiqsumm4) To view the header part of the message
exim -Mvh <message-id>5) To view the body of the message
exim -Mvb <message-id>6) To remove a message from the queue
exim -Mrm <message-id>7) To force delivery message
exim -M <message-id>8) To know the number of frozen emails in a queue
exim -bpr | grep frozen | wc -l9) To delete the frozen mails from the queue
exim -bpr | grep frozen | awk {'print $3'} | xargs exim -Mrm OR exiqgrep -z -i | xargs exim -Mrm10) To see the logs of a message in exim server
exim -Mvl <message-id> 
