Your email address is recorded in two places in Halaxy.
To change the email address used to log in:
Click Settings > Users, then click the Edit (pencil) icon next to your name. Enter and confirm your new email address and click Save.
To change the contact email address used for emailing patients:
Under Personal, click Profile, then click Edit in the top-right of the screen. Update your email address in the Contact Email field and click Save. This is the address used for emailing patients and other contacts. (NOTE: You will have a different Contact Email address for each practice group)
Please see Email Sender Preferences for more information on how to customise which email address you want to use.