Microsoft has announced that Microsoft 365 Business users will now benefit from a 100GB mailbox, doubling the previous 50GB limit and providing significantly more storage for growing organisations.

For many businesses, this is a welcome improvement that removes the need to constantly monitor mailbox size, archive emails manually, or implement workarounds for users approaching quota limits.

What’s Changed?

Historically, Microsoft 365 Business licences included a 50GB mailbox, while organisations needing additional capacity often upgraded users to Exchange Online Plan 2 (EOP2), which provided a 100GB mailbox.

With Microsoft’s latest update, Microsoft 365 Business users now receive a 100GB mailbox as standard, delivering substantially more storage without requiring any licence changes.

What Does This Mean for Exchange Online Plan 2?

The most common question we’re hearing is:

“If Microsoft 365 Business now includes a 100GB mailbox, what happens to Exchange Online Plan 2?”

The key thing to understand is that EOP2 users are not losing any benefits. Their mailbox remains at 100GB, and the services they rely on continue exactly as before.

While the mailbox size is now the same, Exchange Online Plan 2 still delivers additional value for organisations with advanced compliance, retention and archiving requirements. Features such as Litigation Hold, eDiscovery and enhanced archive capabilities make it a strong option for businesses operating in regulated industries or those with long-term email retention needs.

Good News for Growing Businesses

For Microsoft 365 Business customers, this update delivers several advantages:

  • Double the previous mailbox capacity.
  • Less need for mailbox housekeeping.
  • More room for email retention and business communications.
  • Greater value from existing Microsoft 365 licences.
  • A simpler user experience for staff who regularly manage large volumes of email.

Should You Review Your Licensing?

This change may create an opportunity to review whether your current Microsoft licensing remains the best fit for your organisation.

Every organisation uses Microsoft 365 differently, and Microsoft’s latest enhancement gives businesses greater flexibility than ever when choosing the licensing approach that best fits their needs. With 100GB mailboxes now available across Microsoft 365 Business plans, organisations can benefit from increased storage and greater value.

If you’d like to understand how Microsoft’s latest mailbox changes affect your organisation, our team can help review your current Microsoft 365 licensing and identify the most suitable options for your users.

Speak to one of our friendly team today for a Microsoft 365 licensing review and expert guidance.

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