Codacy will always use the information relative to your current session in the Git provider and, among other information, your account's email addresses are harvested and should be visible on your Codacy account settings page.
If you need to make any changes to the emails showing on Codacy (add or remove emails, for example), you need to change this directly on your git provider. Once that's done please log out and back into Codacy with the provider you removed.
If by any chance the changes are still not reflected on Codacy, please go to Your Account page and revoke your GitHub/Bitbucket/Google integration. After that, please log out and back into Codacy with the provider you removed.
If you're still having troubles with changing your emails or have any other question regarding this reach out to us at firstname.lastname@example.org