This Settings section allows you to set up a custom mail domain for your users to receive emails from. Please refer to the following helpful guides that we have prepared for you. These instructions should help you figure out all the peculiarities of SMTP settings configuration:
https://scrile.atlassian.net/wiki/x/AYCyOQ
https://scrile.atlassian.net/wiki/x/DQAvOQ
In case you face any issues in the process, do not hesitate to reach out to our Support Team at support.scrile.com