Hello @ShariG24 ,
You can setup your event email's header settings like a normal email, including setting different from and reply-to addresses. You can also include mailto: links if you'd like to explicitly request that your contacts reply to the event invite with an email, or include a pre-built email.
If that isn't what you're looking for, would you be able to elaborate further on what it is you're looking to have your contacts / event invitees do?
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