We at Templ are focused on creating the best WordPress hosting service possible, hence we do not offer a full-fledged email service, but we do have SMTP-servers for outgoing emails. This can be used with free email services like Gmail for sending and receiving emails. Incoming emails are forwarded by our SMTP-server to your Gmail account.
You can of course use your own domain name for sending and receive emails through Gmail with an address like email@example.com.
If you need more functionality than just sending and receiving emails, then we recommend the external Google service G Suite (previously Google Apps). Using G Suite requires you to change the DNS settings of your domain, if you are not sure how to do this, please contact us and we will assist you.