Changing Outlook Anywhere authentication from Basic to NTLM
Our Outlook Anywhere users are getting prompted for a user name and password every time they log in to Outlook. My understanding is that this is caused by using Basic authentication instead of NTLM. My question - If I change authentication to NTLM, do I have to touch any client machines or will Outlook pick up this change through Autodiscover or some other service? Is there anything I should do to verify clients will receive this new setting? This is on Exchange 2010 SP1 and Outlook 2010 SP1. Thanks
June 12th, 2012 6:20pm

It should pick up automatically - The pop up may be one of a reason. it may be not the only cause . Do update us after that changeSatheshwaran Manoharan | Exchange 2003/2007/2010 | Blog:http://www.careexchange.in | Please mark it as an answer if it really helps you
Free Windows Admin Tool Kit Click here and download it now
June 13th, 2012 3:21am

It should pick up automatically - The pop up may be one of a reason. it may be not the only cause . Do update us after that changeSatheshwaran Manoharan | Exchange 2003/2007/2010 | Blog:http://www.careexchange.in | Please mark it as an answer if it really helps you
June 13th, 2012 3:21am

Hi , Yes, you are right. If we use Basic authentication instead of NTLM, Outlook will prompt to password every time, except for saving the password. And the client know it should Basic or NTLM via AutoDiscover service. So it will pick up automatically. Please refer to the comments of this link. Publishing Exchange Server 2010 with Forefront UAG and TMG: http://blogs.technet.com/b/exchange/archive/2010/07/16/3410408.aspx Wendy Liu TechNet Community Support
Free Windows Admin Tool Kit Click here and download it now
June 18th, 2012 3:36am

Hi , Yes, you are right. If we use Basic authentication instead of NTLM, Outlook will prompt to password every time, except for saving the password. And the client know it should be Basic or NTLM via AutoDiscover service. So it will pick up automatically. Please refer to the comments of this link. Publishing Exchange Server 2010 with Forefront UAG and TMG: http://blogs.technet.com/b/exchange/archive/2010/07/16/3410408.aspx Wendy Liu TechNet Community Support
June 18th, 2012 3:36am

Hi , Yes, you are right. If we use Basic authentication instead of NTLM, Outlook will prompt to password every time, except for saving the password. And the client know it should Basic or NTLM via AutoDiscover service. So it will pick up automatically. Please refer to the comments of this link. Publishing Exchange Server 2010 with Forefront UAG and TMG: http://blogs.technet.com/b/exchange/archive/2010/07/16/3410408.aspx Wendy Liu TechNet Community Support
Free Windows Admin Tool Kit Click here and download it now
June 18th, 2012 3:43am

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics