Configuring dual DKIM in PowerMTA
By default, PowerMTA supports the ability to add a second DKIM-Signature header.
To configure double DKIM, open virtualhost.txt
domain-key dkim1,DOMAIN-1.com,/etc/pmta/dkim1.DOMAIN-1.com.pem # First key, dkim1 - key selector...
RPM package install
A clean install for those who don't want to install extra packages. A server running CentOS 7 is suitable.
Download the RPM package
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Adding new SMTP user
After installing PowerMTA manually, you will need to create a new SMTP user and virtual-mta. To create an user, edit the virtualhost.txt file:
# Adding new VMTA-user
<smtp-user user1> # user's name
password password XXXXX # user's password...
SMTP port in pmta config
To change the SMTP port in PMTA, find and edit the config file at /etc/pmta/config
Find the line that starts with smtp-listener
This line specifies the port used by the PMTA server. If you need to use several ports, duplicate the line.
CLI commands for PMTA server
service pmta restart
Reloading the pmta config
service pmta start
Search for possible errors
pmta reset counters
Checking the status of PMTA...
What is the main configuration file of PMTA
This is a file which is located in the etc/pmta/ directory of your server and responsible for the rules of sending mail from a particular domain/ip address.
Two files are responsible for the configuration of your mail server, config and...