Use the following steps to enable archiving using Office 365.

Go to http://portal.office.com

Select administrator/beheerder. Go to the list of enabled users.

Select Exchange properties

Now the specified user has Archiving rights. So all data in the archive folder is not part of the 50 GB storage limitation. Let’s open Outlook Web Access and notice the Archive button:

When you select an email message you can easily archive that message. It will appear in the archive folder in your mailbox :

or when using Outlook:

Emailmessages are still enabled for indexing and search requests.

October 2014 Microsoft announced unlimited storage for all Office 365 customers. In the next couple of months all accounts will be upgraded from 1 TB to unlimited storage. When you want to check how much storage your Office 365 has in use, you can check this following these steps :

First login to the Office 365 portal :

Go to the Onedrive menu :

Go to Site-instellingen (Site-settings) :

Go to site collection services :

(Dutch menu)

(English menu)

And there you see the consumed storage :