You can add additional email addresses that your classmates can use to contact you. To enable additional contact methods, please edit your profile.
Click the personal Settings link.
Click the Add contact method link.
Click the Email option [1], Click the email address text field and enter a valid email id [2]. When you are finished, click Register Email [3] button.
Click the Text(SMS) option [1],type a valid Cell Number [2], Carrier [3] and SMS Email [4] at proper text field. When you are finished, click Register SMS button [5].
Open your email account you just added. Click the link that is in the email to finish registering the additional email address and click the OK, Thanks button.
The email address you added will show up under the Ways to Contact sidebar under Email Addresses. To delete an email address, click the Trash icon.