The blocked senders section helps you to modify the senders you have blocked. Since Internet has become very popular, there are a lot of unwanted mails, which are sent you personal mailboxes. This feature helps you remove annoying senders and stop mails, which are unwanted.
In the Blocked Senders/ Mail Filters page, you find the list of existing blocked senders in the text box in the Blocked Senders section. You should enter the email id of the senders you want to block in different lines in the text box. To remove a user from the list, select the entire mail id of the particular user and press the delete button on your keyboard.
To add users to the blocked senders list, add the new email id in a new line in the text box and click on the 'Update Information' button. You can enter any number of email id's before clicking the button.