I’m an IT consultant specializing in Microsoft 365 / Exchange Online and PowerShell automation. This site is my working notes and knowledge base — scripts, write-ups, and lessons from real-world tenant administration, sanitized for public sharing.
Focus areas
Recent posts
- Finding Orphaned Shared Mailboxes at Scale: What My Precision Numbers Actually Taught Me
- A False “Token Expired” Halt in 50-Thread PowerShell — and the Statistics That Actually Fixed It
- Auditing Mailbox Permissions Across an 80,000-Mailbox Tenant
- Two Silent Failures I Found Building an M365 License Report
- Script to Query Multiple Recipient Types in Microsoft 365
- Add Trusted Senders & Display Trusted Senders List
- Add Domain to & Display Trusted Senders List
- User ACP Info
- Removing an Email Address from Unsafe Senders List in Exchange 2010 Using PowerShell