Introduction

Here are instructions to add a shared mailbox to your account in Outlook for Mac/Windows with your Microsoft 365 account.

To open a shared mailbox from Outlook do the following

• Open Outlook for Mac / Windows

• On the Tools menu, click Accounts  > Advanced > Delegates.
• Add the mailbox under Open these additional mailboxes
• Click the + and add type in the name of the shared mailbox
• Click Ok to add the mailbox and then click Ok to close the Delegates dialog.

Hope that helps!

Want to Know How We Can Support Your Business?

Here at iThink 365 our expert team helps organisations unlock the full potential of Microsoft 365, leveraging AI, Copilot extensibility, and custom agents to build intelligent, automated solutions. From streamlining workflows to eliminating repetitive tasks, we deliver automation that saves time, boosts productivity, and adds real business value.
Get in touch today to see how AI-powered support could work for you.

Other posts

• 
  What’s New in Microsoft 365 Copilot: Wave 3 Updates Explained 
  by Laura Nickson
  7 April 2026
  Microsoft has just announced its latest wave of Copilot updates and there’s a lot to get excited about. Here’s a quick rundown of what’s new, what’s changing, and what it means for you.  Meet Copilot Cowork – Your New AI Partner  The biggest introduction in…
• 
  Introducing ‘Photo Sync’ for iThink Connect Sync 
  by Laura Nickson
  18 February 2026
  Finally, no more chasing IT to upload staff photos!  Hybrid working has changed how teams connect. With people splitting their time between home and the office, and entire conversations happening through Teams or email, recognising who’s who has never been more…
• 
  End Groundhog Days with an AI Agent 
  by Laura Nickson
  18 February 2026
  A lot of businesses are doing the right things for their teams: better mental health support, access to counselling, health insurance and reminders to take screen breaks. Even fitness initiatives for those of us sat behind a desk all…