There is no any restriction on the size of the mailbox. The user can define any limit for the mailbox depending on their requirement. Though there is no limit the allotted quota should lie in the total disk space allotted for the hosting plan. The HostingRaja control panel front end interface makes it easy to set your data limit. There are plenty of functionalities designed to support the mail environment at HostingRaja.
What is the size limit for the Mail Box?
You can allow any amount of web space to your email account. However, you will be able to use only up to the total quota of your webhosting package.
If you need any assistance in this regard, you can contact us at http://www.hostingraja.in/support/