What URL have to be allowed for Outlook anywhere to work

This is using MS Office365 Exchange online. Recently, my management have blocked the URL access by using firewall. By default, all web sites will be blocked unless those in use. We got the serious problems on this as we don't which MS URLs need to be allowed for https/http. btw, which URLs have to be allowed in order for outlook anywhere to work without problem?

Thanks in advance!
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MichaelBalackAsked:
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Vasil Michev (MVP)Commented:
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Damien KayCommented:
Outlook Anywhere uses the following URL:  
    https://outlook.office365.com

I would suggest that you also allow the following URL's for web-based access:
    https://portal.office.com
    https://portal.microsoftonline.com

damien
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MichaelBalackAuthor Commented:
After keying the url and IP lists, outlook anywhere can work without problems.

Appreciate a lot.
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