Root Cause
Some users experienced issues sending emails due to a security measure that blocked certain content in the email body. This was intended to prevent specific types of data from being sent but inadvertently affected regular email usage.
Resolution
The issue was resolved by reversing the initial change and then adjusting the blocking rule to be more precise. This ensured that regular emails could be sent without disruption.
Action Plan
The initial blocking rule was reverted and replaced with a more targeted approach, improving error logging for easier troubleshooting. Ongoing evaluations will continue to refine the email blocking mechanisms to prevent future issues.