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Licensing and mailbox types

Know which Microsoft 365 plans include what, which mailbox types need a license, and how to avoid paying for the wrong thing.

Level
Beginner
Length
About 40 minutes
Contents
3 lessons · 1 video · final exam
Status
Published · updated 2 Oct 2026
  • Microsoft 365

Skills you'll practise

  • Distinguish user, shared, room and equipment mailboxes and say which need a license.
  • Identify when a shared mailbox needs a license (size, archive or hold).
  • Match common business plans to what they include at a high level.
  • Explain what happens to mailbox data when a license is removed or a user is deleted.

Course outline

  1. 1.Licensing and mailbox typesVideo · 4 min
  2. 2.Mailbox types and when they need a licenseLesson · 8 min
  3. 3.Plans and what they includeLesson · 8 min
  4. 4.What happens to data when licenses changeLesson · 8 min
  5. 5.Licensing and mailbox types: knowledge checkKnowledge check · 14 questions
  6. 6.Final exam8 questions · passing it completes the course, so people who already know the material can test out

Sources it draws on

The lessons and questions are written from these references, so learners can go back to the original.

  • Microsoft Learn: About shared mailboxes
  • Microsoft Learn: Exchange Online limits
  • Microsoft Learn: Microsoft 365 for business subscription service descriptions
  • Microsoft Learn: Room and equipment mailboxes
  • Microsoft Learn: Remove a former employee and secure data

See it with your own jobs and topics

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