Microsoft has delayed rolling out the new Outlook client to enterprise users by a whole year

Microsoft has delayed rolling out the new Outlook client to enterprise users by a whole year

By Simon Batt
Publication Date: 2026-03-09 22:14:00

Summary

  • Microsoft delays the enterprise rollout of new Outlook from April 2026 to March 2027.
  • The pushback gives businesses 12 months’ lead time to prepare and for Microsoft to address feedback.
  • Admins can still choose old or new Outlook, but Microsoft likely wants the new client to make a strong first impression.

A little while ago, Microsoft began rolling out a brand new Outlook client. It arrived for consumers first, and Microsoft got to work on making the client work for enterprise users, too. Originally, Microsoft wanted to get all its enterprise users moved over to the new Outlook in April 2026; however, in a recent…