Under System settings → SMTP, for each organization an edit icon is provided to edit the SMTP Settings.
There should be an edit option to select among a list of White label domains.
By clicking on edit popup will be displayed as below. One could edit API Key and Domain from the dropdown and click on “Update” to save the changes and click on “Close”, to discard the changes.
If Organization is HIPAA enabled , then the toggle button is disabled to swap between sendgrid and mailgun, as sendgrid is restricted in HIPAA enabled accounts. Only mailgun services are supported and the edit icon is provided only for mailgun.
