Currently, there are only From, To, CC, and BCC options for emails sent from a Forms process. For security purposes, our Network Admin wants emails to come from a specific sub-domain, and not our primary domain - something like "no-reply@imail.companyname.com". Email addresses for users are on the primary domain "companyname.com".

So, when the user gets an email from a Forms process that uses Previous Submitter in the From address, we would replace that with a static "no-reply@imail.companyname.com" instead of Previous Submitter, but we would like to have a Reply To: Previous Submitter option instead, so the recipient of the email can still reply to it.