Postfix - Queue Management

About

How to manage the postfix queues

• maildrop
• hold
• incoming
• active
• deferred
• corrupt

Management

The management is done with this tools:

• postsuper privileged queue operations for super user
• postqueue unprivileged queue operations for all users
• postcat show Postfix queue file contents

Number of emails

postqueue -p | grep -c "^[A-Z0-9]"

Resend

• The queue

postqueue -f

• One email

postqueue -i “Queue ID”
postqueue -I EmailID

Remove

• All

postsuper -d ALL

• One email

postsuper -d EmailID
postsuper -d “Queue ID”

• Based on a content pattern with grep

$PATTERN="Header: bad"
for id in `postqueue -p | grep '^[A-Z0-9]' | cut -f1 -d' ' | sed 's/*//g'`; do 
    postcat -q $id | grep $PATTERN && postsuper -d $id; 
done

List

 
postqueue -p

See

You need first to list in order to retrieve the email id.

postcat -q EmailID

Move between queue

• Move the email from the incoming queue to the hold queue

postsuper -h ALL

• Move the email from the hold queue to the incoming queue

postsuper -r ALL

Documentation / Reference

• http://www.postfix.org/QSHAPE_README.html#queues