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FIX: "Invalid URL path" error when an external user tries to connect to a shared calendar

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Symptoms

Consider the following scenario:
  • You publish Microsoft Exchange OWA or Outlook anywhere by using Microsoft Forefront Unified Access Gateway 2010.
  • A user logs on to use the Exchange "Publish Calendar" feature to share their calendar with other external users in iCal or HTML format.
In this scenario, external users who are connected through the Unified Access Gateway server receive the following error message when they try to connect to the shared calendar:

Invalid URL path

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Cause

This problem occurs because the Exchange "Publish Calendar" feature incorrectly redirects the client to a webpage that generates a URL for Calendar sharing, and the URL resembles the following:

http://webmail.company.com/owa/calendar/firstName.Name@company.com/Calendar/calendar.html

By default, the Unified Access Gateway Exchange publishing template does not include a URL set that allows for this kind of URL.

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Resolution

This problem is fixed in Rollup 1 for Forefront Unified Access Gateway 2010 Service Pack 4.

Note This hotfix is effective for only newly recreated trunks or publications.

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Workaround

To work around this problem for an existing trunk or publication, add "/owa/calendar/.*" to the trunk URL set.

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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References

Learn about the terminology that Microsoft uses to describe software updates.

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Keywords: kbnotautohotfix, kbqfe, kbfix, kbexpertiseinter, kbsurveynew, kbbug, kb

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Article Info
Article ID : 2997493
Revision : 1
Created on : 1/7/2017
Published on : 10/28/2014
Exists online : False
Views : 282