There is two ways we can attempt this:
What would you like to do?
OK, I've justed logged into mine.
Login to your account. In the top right hand corner, click on Options, then select More Options. Under Customise your mail, select Automatically sort e-mail into folders, then click on New Filter. Similar to Gmail, enter your ctirier.
Can you see the filter of time stamps?
Their should be a filter for date, and you can sort going backwords?
If you can do this you'll see your oldest emails regardless of location (they could be in multiple different folders etc)
Please close and accept :)