Some common postfix commands

Here are a few of my most used postfix commands for managing the mail queue.

• Check how many emails are in the queue per domain (based on from address)
  • postqueue -p | grep "Aug" | awk '{print $7}' | sed 's/^.*@//' | sort | uniq -c | sort -n
• List all the email from a particular domain
  • mailq | grep $domain
• Delete all email from a specific domain
  • mailq | grep $domain | awk '{print $1}' | postsuper -d -
• Read a specific email in the queue
  • postcat -q $id   (the $id number is the number that was listed when you brought up a list of email)
• Search for the authenticated username in a specific email
  • postcat -q $ID | grep Auth