CEO has requested that I send out an invitation/save the date on their behalf, and wants the reply-to address to be both his and his Exec. Assistant...
I created a simple text token separating the emails with both a colon and a comma, and then dropped the token in... But it did not work... Emails bounced.
This is not possible, period. It's been asked multiple times and the answer is: set up a mailing list and use the list address.