The following steps can be used to send email using the pdm_mail command from the operating system command prompt.
Step 1: Create a text file with the body of the message that need to convey. Ex: Content.txt
Step 2: From the operating system command prompt of application server. execute this below command.
pdm_mail -i -s "This is Subject request # CR400001" -e "firstname.lastname@example.org" -q < content.txt
This will send email notification to Specified Recipient email@example.com