Unfortunately, Scout needs express authorization from each account on a per email basis, so changing the sending email is not possible.

If you would like to create a second account with a new email address and request for your existing credits to be re-assigned and campaigns duplicated.

For SMTP accounts, Scout can send from a subdomain or an alias. You can [make this request by sending an email to our support team](mailto:[email protected]?subject=Add%20a%20subdomain%20or%20alias&body=I%20would%20like%20to%20add%20the%20sending%20address%20[insert%20sending%20address]:%0A%0ASendgrid%20API%20Key%20[provide%20Sendgrid%20API%20key,%20if%20it%20has%20not%20already%20been%20provided]:).