Outlook 2010 Emails getting deleted from inbox automatically.

I have been using Microsoft Office since long on my Windows 7. But recently I happened to come up with an unique issue. My inbox gets cleared automatically; I can’t make out the reason behind this. How can I undo this auto-deletion thingy?

This is quite a trouble-making situation, I tell you. But this definitely is not magic. So, we have solution for this too.

I need to have some details from you before I help you with this situation.
1. Which Outlook are you using?
2. The accounts you have are they IMA or POP3?
3. Who is your provider? (Gmail, Hotmail, Yahoo, etc)

I know, anyways, thanks for the boost up! The following are the details you asked for: I am using Outlook 2010, The accounts are POP3, The provider is Optus.

That was quite an useful information. Just perform the following operations and your problem is sure to be resolved:
1. In your Outlook account, go to File
2. Go to info and select account settings
3. Once the account setting window opens, locate the account you wish to alter and press ‘change’
4. Go to More Settings>Advanced
5. Under Delivery uncheck the ‘remove from server after…’ option