You can reply or forward the emails from the Email module and Work Order page.
Reply/Forward email from the Email module
Steps:
Go to the Email module and open the email that you want to send a reply or forward it.
Click on “Reply”, “Reply all”, or “Forward” to open the email composer.
Compose the email and click on “Send” to send the email.
Reply/Forward email from the Work Order module
Steps:
Open the work order go to the “Email” tab and open the email that you want to send a reply to or forward it.
Click on “Reply”, “Reply all”, or “Forward” to open the email composer.
Compose the email and click on “Send” to send the email.