Default Mailbox size increasing for Office 365 E3/E5 to 100Gb

Microsoft are going to Rolling Out a double capacity to Office 365 Mailboxes! It’s doubling the capacity.

The default mailbox size for Exchange Online E3 and E5 users is increasing from 50GB to 100GB. If a mailbox has been assigned a non-default quota (for any of the 3 quota values) then no change is made.
Tenants will be able to increase quotas up to 100GB.


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