An e-mail address is a unique identifier for an e-mail account, typically used to send and receive electronic messages over the internet. A standard e-mail address format is username@domain.com, where 'username' is the recipient’s email account and 'domain.com' represents the mail server.
A User ID is the unique identifier by which a user is identified on a particular computer network or system, typically used in conjunction with a password for secure access.
