Skip to content

Undocumented Features

The hosting venue has changed to serve you better.

  • Home
  • How-to Series
  • Buy my books
  • Privacy Policy
  • About Me
    • Contact
  • Admin

Tag: dbeb

Posted on July 23, 2020December 9, 2021

Exchange Online Protection 550 5.4.1 Recipient address rejected: Access Denied. AS(201806281)

Today, I found myself working with a customer that was experiencing delivery failures to some Office 365 recipients from all external senders.

As problems go, this one definitely finds itself in the “interesting” category.  No, it’s never good to have “interesting” problems (just ask a doctor).… [ Continue reading ]

Recent Posts

  • Ask me Anything: A ChatGPT book excerpt (read: free chapter) July 17, 2024
  • Ask Me Anything: Real-world conversations with ChatGPT June 24, 2024
  • Delete events in resource calendars May 11, 2024
  • Power Platform and the AI Revolution is now available for pre-order! May 10, 2024
  • PowerShell Mouse Jiggler May 6, 2024

Categories

Sponsored

Sponsored

Meaningless Stats

  • 47
  • 32
  • 50,578

Sponsored

Follow Me

Privacy Policy Proudly powered by WordPress