delete all emails from Outlook 2010 inbox retaining only the last 3 months

Question

I have 9000 emails in my account. How do you delete all emails from Outlook 2010 inbox retaining only the last 3 months.

Answer 1

One option is to use the Outlook search filters.

Using a filter such as:

received:=<29/10/2015

will return all emails received on that date and before. You can then simply delete all returned results.

Answer 2

An alternative (if you want less destructive) is to simply use the Archiving (and auto archiving) tool to run as often as you like all emails older than the amount you want (3 months). It will then push these emails to another account.