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Office 365 mail traffic statistics by user

One extremely important area that organizations need to report on is mail traffic. This PowerShell script collects information on how many emails each user has sent and received over a given period.

This information has a number of applications:

  • You can see if users are receiving a high number of emails, which could indicate that the organization’s spam filters are not working effectively.
  • You can check if users are close to reaching their mailbox storage limits.
  • You can see when there is an increased amount of mail traffic over any given period.