You can change your account email from workspace settings with few simple steps.
Step 1
Click on the down-arrow button next to your workspace name and click the option ‘Workspace Settings’.
Step 2
Once you’re in the workspace settings go to Workspace from the left sidebar
Step 3
You can update your domain here. Make sure it’s a unique domain ID.
Step 4
Hit save when you are done with the modification.
If you have multiple workspaces you can change the profile settings individually from each workspace setting.