Microsoft is doubling the size of Exchange Online and Office 365 primary mailboxes from 25GB to 50GB for no extra cost.
The company announced the new plans via its blog and they apply to most paid-for mailbox subscriptions with those on the cheaper “Kiosk” tiers seeing their capacity rising from 1GB to 2GB.
“You don't need to do anything to take advantage of this new mailbox size. Your mailbox size will automatically be increased. The increase starts rolling out to customers today and continues through November,” explained Stephen Brown, product marketing manager for the Exchange team.
The Exchange Online Standalone plans being upgraded are the Exchange Online Plan 1 and 2. Those that qualify for an upgrade under Office 365 plans are the Small Business and Small Business Premium plans, Midsize Business, Enterprise E1, E3 and E4, Education A2, A3, and A4, and Government G1 and G3.
In addition to the primary mailboxes being increased, Microsoft is also upping the size of Shared and Resources mailboxes to 10GB with the Archive mailbox size sitting at between 50GB and Unlimited depending on the plan.
“There's no price increase associated with this change. Our doubling of your mailbox storage is simply part of our promise to continuously deliver value to our Office 365 customers,” Brown confirmed.
Microsoft’s email service is facing increased competition from the likes of Google, though has still been able to sign significant business deals in recent weeks with Capita moving 20,000 employee email accounts over to the Office 365 cloud.
For consumers, Office 365 costs $100 [£66] for a year and 100 million users have so far signed up for the service that gives users access to all the elements of Office 365 wherever they are. The firm recently launched an Android version of the service and the increased email storage will help them to continue competing.