Hotfix for missing anonymous authentication in Outlook Mail control panel
Hotfix for missing anonymous authentication in Outlook Mail control panel
If you are having difficulty setting up exchange in your mail settings for Outlook, you are probably missing the Windows update that is required to be able to setup with Autodiscover. The missing update installs the “anonymous authentication.
You need to install the hotfix
To get Anonymous Authentication for Outlook 2007 to use Office 365 hosted exchange you must install KB2768023. To get Anonymous Authentication for Outlook 2010 to use Office 365 hosted exchange you must install KB2687608.
TIP: If this fails, upgrade to Outlook 2013. I had to do that with a client, worked immediately.
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Category: Outlook Support
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Lisa Hendrickson is the owner of Call That Girl. She is an Outlook Expert and Microsoft 365 Consultant.Subscribe
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Recently my org just migrated from Exchange 2003 to Office 365, my WSUS is downloading all the updates and hotfixes for Office 2007 and 2010. To make a long story short, so far you are the only person I have been googling that know what specific hotfixes to get Anonymous Authentication for Outlook. Just want to say thanks! You’re awesom and let me know where you want me to send the cabana boy to!
Yes, thanks for the KB.
Of note is that Outlook 2007 will stop working completely (no fix) with 365 as of Oct 31st 2017 – this hasn’t been that widely publicized as far as I’m concerned. Note that you could use a POP/IMAP connection still.
Outlook 2010 and 2013 can be patched.
https://support.microsoft.com/en-us/help/3201590/rpc-over-http-deprecated-in-office-365-on-october-31–2017