With the help of My Webmail, you can easily store email addresses, which you can make use of while composing an e-mail.
(1) Select Addresses option located on the Toolbar after logging with your username and password
(2) Provide a Nickname, E-mail address, First and Last name on the respective fields. You can also provide additional info if required.
(3) You will view a screen as shown in the figure below
(4) You can also import addresses which are up to 50 MB in size from providing the required options in the Address book import section
(5) It is also possible to export the address list by selecting Export to CSV File button.