Identifying messages that have been prevented from reaching their intended recipients within the Microsoft 365 environment requires administrative access and the use of specific tools. The process generally involves accessing the Exchange Admin Center or Security & Compliance Center, depending on the specific reason for the blockage. Examples include examining the mail flow rules, connection filter policies, or anti-spam policies to determine if legitimate senders are being inadvertently blocked.
Regularly monitoring and reviewing these blocked emails is crucial for maintaining effective communication and ensuring that important messages are not lost. This proactive approach can prevent business disruptions, safeguard against potential phishing attacks that might be misidentified, and optimize email flow within the organization. Historically, the need for such oversight has grown as email threats have become more sophisticated, requiring organizations to implement robust security measures and continuously refine their email filtering strategies.
