If you have another email address from which you'd like to send your Mixmax emails, you can import this email address as an alias in Gmail. This will allow you to send emails from either your standard email address or an alias email address that you've added.
Once you and your colleagues are set up with individual Mixmax accounts in a shared Workspace, you'll be able to share features such as email templates, contacts, and other assets by creating a Mixmax Group. Check out our Groups overview for information on how to set this up.
If you would like to send a sequence on behalf of a colleague, check out our Delegated Sending option, available on our Enterprise plan.