I have Exchange server 2007 on windows 2008 server, How to control OWA setting, so I can enforce the delivery & read receipt for all outgoing messages It works fine in outlook 2007 by importing “2007 Office system Administrative Template files “into group policy. Now outlook 2007 tracking options are always checked But unfortunately I didn’t find any tool to control theses setting through OWA, so please help to find any tool whether by using internal administration or by using development tools that can manipulate OWA through IIS

This link shows all the available switches for the Outlook Web App policies in Exchnge 2010. I don't see any mention of forcing read and delivery receipts in here for 2010, so I doubt it is availabe in 2007. http://technet.microsoft.com/en-us/library/dd297989.aspx http://technet.microsoft.com/en-us/library/dd351097.aspx Exchange 2007 OWA link: http://technet.microsoft.com/en-us/library/bb124348(EXCHG.80).aspx Sorry, don't think this is possible native to ExchangeTim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

Per my research, there’re several request for such task in the past. Unfortunately, Tim’s right. The periodical conclusion is, such task can’t be accomplished in exchange natively, WebDav, or EWS. For Outlook users, you know that we can do it via GPO. But for OWA users, it cannot be covered. If I can find a way in the future, I’ll share that with you Microsoft support policy for the customization of Outlook Web Access for ExchangeJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com