Office 365 Mailbox Size Increase to 100GB

Big news today from Microsoft. The default mailbox size for Exchange Online E3 and E5 users is increasing from 50GB to 100GB .

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.
Could we see 200GB mailboxes in 2019? But really, Microsoft’s last major increase was in 2013 when they bumped mailboxes from 25GB to 50GB.

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