EmailVoid is web-services with API, email receive service (i.e. fake SMTP server) and web site with basic control panel.
EmailVoid receive incoming mail message and storing a limit time. EmailVoid authorize user cas receive this message for check expectations in automate manier.

You have a two basic use case:

1. Change SMTP relay in you system;
2. Chnage mail address;

EmailVoid server receive message and later you can capture all your messages, without delivery to real users/customers. After that you can collect some valuable metrics and make some checks: message body validation, date and time an etc.

EmailVoid saving message 30 days. Public account rest all message every month.

You can create access token in control panel on Auth Keys area.
No more public access token is available.

You can open https://github.com/emailvoid