Please follow the below steps to create mailboxes in Webspace.
1.Login to your Webspace account with username and password by using the below URLs.
http://cpanel.yourdomain/ or http://Yourdomain:2082/
2. select the Email accounts icon in mail feature.
3. Type the email address to be created in the Email field.
4. Type the password in the Password field.
5. Allocate the quota in the Mailbox Quota field.
6. Click Create Account.
7. Finally, the account will be created.