Using SMTP will allow users to send mail from their own mail server instead of using the SWELL servers. This is really helpful if you want to completely remove the SWELL branding from your emails or even if you want to improve your email deliverability.
To setup your SMTP settings, go to your profile settings: https://app.swellsystem.com/profile/#smtp
In your profile settings, locate the SMTP box (toward the bottom) and enter your SMTP details.
Once you fill in your details for your SMTP server (these are provided by your mail host) click the Update button to save your changes.
That's it! If you entered the correct details, you should now be able to use your own mail server for sending emails from SWELLEnterprise.