How to recover deleted mail ?

I accidentally deleted one mail from my inbox that mail is very important for me can some one tell me how can i recover that ? Is that possible or not ?

Thanks

Are you using Outlook or not ? If you are not using outlook then it's not possible.

To enable the Recover Deleted Items functionality on mail folders other than Deleted Items (for example, for Sent Items, Drafts, Outbox and Inbox folders), you must make the following changes to the registry:

• Start Registry Editor (Regedt32.exe).
• Locate and click the following key in the registry:
  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\Client\Options
• On the Edit menu, click Add Value, and then add the following registry value:
  Value name: DumpsterAlwaysOn
  Data type: DWORD
  Value data: 1
• Quit Registry Editor.