Email Services decides how email leaves your workspace. Until you set up your own, mail goes out on the shared platform domain. You can send on a dedicated branded domain that SmartlyQ runs for you, or bring your own mail server.
Open Settings and choose Email Services. The Sending tab holds the two options; the other tabs cover reply routing, analytics, deliverability and postmaster tools.

A dedicated domain gives you the best deliverability and tracks opens, clicks and bounces. Click Add Domain, enter a subdomain such as mg.yourbrand.com, add the DNS records it gives you, and verify. Once verified, your mail is sent and signed as your own brand.

Prefer to use a provider you already pay for? Choose Your own SMTP to send through your own mail server with your own credentials. There are no platform sending charges on this route.