Have outlook 2016 on Exchange 2013. Exchange server passes all outlook connectivity test and autodiscover test. Setup the profile from scratch and autodiscover works and you are in your mail. close outlook re-open and you are prompted and will not accept
password. Exchange set to NTLM on 2013 server and legacy 2010 server set to NTLM. mail box on 2013 not on 2010 everything works mail flow outlook in the office just outlook anywhere is the issue. Out of places to look. I would think it working if you create
the profile from scratch with autodiscover and that works but if you close outlook and reopen it no longer works and prompts. Any ideas?
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