Anonymous calendar sharing for Exchange 2013

Exchange 2013: Enable ‘anonymous’ Calendar sharing for webclients

In this post we will enable calender sharing, or rather publishing to external users. This is a potential security risk, so decide for yourself wheter it is worth it. I need it, as I want to provide normal users the ability to publish their calendar to a spuose or some other person, whom isn’t an Exchange user.

Setting up InternetWebProxy

It should be so easy, but it actually requires some steps. First, lets see if an InternetWebProxy is already enabled:
Get-ExchangeServer | select name,internetwebproxy

Well, mine weren’t enabled, so I’m going to enable it and pointing at my existing external owa directory, which you need to set up first, if you havn’t done so already.
Set-ExchangeServer -Identity "MailServer" -InternetWebProxy https://someurl.com/owa
Get-ExchangeServer | select name,internetwebproxy

Creating a SharingPolicy

I acutally wanted to make this using my webinterface, but it seems they took that away, so here we create and enable a new policy named CalendarSharing which targets everyone on the server to publish their Calendars in detail.
New-SharingPolicy -Name "CalendarSharing" -Domains "Anonymous: CalendarSharingFreeBusyDetail" -Enabled $true

If you only want to share inside your organisation, you can make it like so:
New-SharingPolicy -Name "CalendarSharing" -Domains "*: CalendarSharingFreeBusyDetail" -Enabled $true

Now we need to enable the AnonymousFeatures available to Owa and restart the IIS
Set-OwaVirtualDirectory -Identity "owa (Default Web Sie)" -AnonymousFeaturesEnabled $true
iisreset

So, did it all Work?

Go to OWA, right-click calender and choose “share”.

Make sure you can send Calendar sharing with free/busy information only

• Calendar sharing with free/busy information, plus subject and location
• Calendar sharing with free/busy information plus subject, location and body
• Contacts sharing
• Calendar sharing with free/busy information only, Contacts sharing
• Calendar sharing with free/busy information, plus subject and location, Contacts sharing
• Calendar sharing with free/busy information plus subject, location, and body, Contacts sharing

 Links:

Set-OwaVirtualDirectory: http://technet.microsoft.com/en-us/library/bb123515(v=exchg.150).aspx

New-SharingPolicy: http://technet.microsoft.com/en-us/library/dd298186(v=exchg.150).aspx

Enable Internet Calendar Publishing: http://technet.microsoft.com/en-us/library/jj853046(v=exchg.150).aspx

Источник: http://www.itnotes.eu/?p=916