I am attempting to configure an email subscriber. I have been following the tutorial concerning this. I have used the snippet of JSON in the tutorial to successfully send/receive email. I can remove the foo@bar.com address from the "email_to" parameter and it successfully uses the setting in the subscriber for the "To:" parameter from the foo@baz.com address. So, email is crossing the SMTP Server (Relay) I've configured in the subscriber. I can even place a personal gmail address as the "From:" and it successfully sends the email. However, when I try to configure the "From:" using an existing email address on our domain.....no dice.
Any ideas would be greatly appreciated. Thank you in advance.