Topalt Reports

That is where Topalt Reports helps you - create Outlook report to find that out. Create email amount report to count emails received during certain time (hours, days, weeks, months).

Create sender report to extract all email addresses that you have received emails from.
Main features:
-Is FREE.
-Easy to use for beginners, powerful for advanced users.
-Extracts sender email addresses.
-Can export report to CSV file.
-Generates email amount, bandwidth, sender, recipient reports.
-Generates reports by hour, day, day of week, month.
-Can apply date filter.
-Works with all Outlook versions: 2000, 2002 (XP), 2003, 2007 and 2010 (32 and 64 bit).