To help safeguard your critical business information from spam emails, malware, and phishing attacks, it's essential to have plans and policies in place to monitor the web traffic in your Exchange environment. Exchange Reporter Plus, a reporting, auditing, and monitoring tool for hybrid Exchange and Skype for Business, provides numerous internet traffic reports.
The categories of reports available under the Email Traffic section are:
Report on and audit Exchange Online using Exchange Reporter Plus.
With these reports, you can view the overall traffic from/to the internet in your Exchange Server.
List of reports under the Overall Traffic from/to Internet category
Get insights about the amount of internet traffic generated by a specific domain. You can monitor the number and size of messages communicated from and to that domain.
List of reports on traffic from/to Internet (by Domain)
This category of Exchange traffic reports is designed to monitor the internet traffic of any specific user. All you have to do is select an Exchange user and schedule this report. All the information is gathered using the Exchange logs and PowerShell cmdlets.
List of reports on traffic from/to Internet (by specific User)
In addition to the above categories, you can also monitor a specific user's email activity with respect to a specific external domain. The Number of Mails Sent to a Specific Domain by a Given User report comes in handy to track any user who has accessed a compromised site and invited malware into the organization.
Use these reports to monitor Exchange internet traffic across Exchange Server versions 2003, 2007, 2010, 2013, 2016, and 2019. Refine the reports by monitoring traffic over business and non-business hours, based on your needs. You can also configure the reports to be emailed to you at specified time intervals and in different formats, including CSV, PDF, XLS, and HTML.