How to remove the received:from the header in PMTA?

To remove the received (received: from) header entry in PMTA, do the following:

First, open your PMTA config file located at:

nano /etc/pmta/config

Id you don’t have nano, you can install it using this command:

Ubuntu:
sudo apt install nano

CentOs:
yum install nano

Now in the config add following commands to <source {auth}> tag:

remove-received-headers true
add-received-header false
hide-message-source yes

Now lets reload config and restart your PMTA

service pmta reload
service pmta restart

You’re Done!