We will be replacing the older version of Freshdesk with the new Mint experience on January 31, 2019. All your data and configurations will remain intact. Switching back to the old Freshdesk will not be possible. To read about this feature on Freshdesk Mint, refer to this article instead
This feature is currently not available on Freshdesk Mint.
This feature is not available on the old Freshdesk.
If you signed up before Aug 9, 2021, please click Previous plans to view your applicable plans.
The default behavior in Freshdesk is that the reply to a ticket would be sent using the support email address from which that ticket was created.
However, if your requirement is to reply through an email address irrespective of the email address from which the ticket was created, you could install an app called "Customize 'From' Email Address". This can be installed under Admin > Support Operations > Apps > Get More Apps.