How to Connect Your Google Account
Your emails will come from you, not some impersonal third-party service provider. Here is how easy it is to link your Gmail or Google Workspace account.
Don't use Gmail, Google Workspace (formerly GSuite) or Outlook.com for your email?
You can learn how to send from an Alias Account with the information in this KnowledgeBase Article - https://connect365.helpscoutdocs.com/article/22-how-do-i-send-email-with-connect-365-from-a-non-google-or-outlook-com-account
If you're not sure what/how the alias emails are used, you can read more about how to set them up in this Google support doc here -- https://support.google.com/mail/answer/22370?hl=en