Exchange Online

The Preferred Data team writes for North Carolina small businesses, manufacturers, and defense contractors from our base in High Point, NC. Below is every post on Exchange Online. Need help applying any of this to your own environment? Talk to PDC at (336) 886-3282.

Sep 20, 2026

Microsoft 365 Change Oct 1: NC Invoice Emails at Risk

Microsoft writes your EWS allow list after September 30 unless you do it first. What that breaks at an NC plant, and how to check. Call (336) 886-3282.