Unable to create a E-Mail id for my subdomain ?

Solution :

You can able to create a mail id for your Main Subscription alone. You are unable to create a email id for your subdomain. If you want to create a mail id for your subdomain then you have to create a subdomain as a seperate main domain. Then only you can able to create email id for your subdomain also.

[1] Access your control panel at https://www.yourdomain.com:8443 [ Example :https://www.servername:8443 ]
[2] Click on subscriptions.
[3] Click on Add New Subscriptions.
[4] Give your Domain name.
[5] Give FTP user name and password for this domain. [Make sure you are giving very tough password].
[6] Choose your Service plan.
[7] Do not check the “Proceed to customizing the subscription parameters after it is created” option, unless you understand what it does.
[8] Click on ok.