The website running Appointments+ is http://interview.aeos.io When a user signs up, they get no email because we automatically confirm it. However, when they are getting reminder emails the user gets 2 and the client gets 2. We use SMTP Postman to deliver our messages through our Google Apps for Work. You have been granted access through the WPMU DEV Plugin to the AEOS Global Network, let me know what else you need. Thanks ahead of time!
All the best,
Fadie Hany Areny