Click “Email Preferences.”
Comcast instructions, step 1
Click on the “EMAIL” icon.
Comcast instructions, step 2
Select the “Composing” tab, and input your @GulfBreeze.com email address in the “Your name on emails will be” field. Click “Collapse” and your information will be saved.
Comcast instructions, step 3

Your @GulfBreeze.com email address will now show in your outgoing emails.