outlook 2016 for mac stops connect to 365 exchange

Outlook will use the default behavior that is to prompt when Autodiscover Redirects occur. Enable Windows Authentication -NTLM, Negotiate and Basic. As a workaround, try to edit the authentication settings for the mapi virtual directory in the Exchange Admin center. Outlook defines what URLs are trusted and this is not configurable. Please use the Microsoft Remote Connectivity Analyzer to run outlook connectivity tests and check if any errors. The TrustO365AutodiscoverRedirect preference can be configured to use the following values: Boolean Setting valueĭon't prompt for trusted Microsoft 365 endpoints. On the Terminal menu, select Quit Terminal. defaults write TrustO365AutodiscoverRedirect -bool true

In Spotlight Search, type Terminal, and then double-click Terminal from the search results.Įnter the following command in the Terminal window, and then press Enter.

With Finder as the selected application, on the Go menu select Utilities, and then double-click Terminal.

Open Terminal using one of the following methods: Install the Decemupdate for Outlook 2016 for Mac (version 15.29.0) or a later update, and then follow the steps to configure the Outlook 2016 for Mac Autodiscover redirect warning behavior when you connect to Microsoft 365.įor information about this update or to download the Outlook update package, see: This article contains information about how to do this. You or administrators may want to suppress the initial warning message. When this warning message occurs, you may select Always use my response for this server and then select Allow in order not to be asked about this specific server again for this Outlook 2016 for Mac profile. Outlook was redirected to the server to get new settings for your account Do you want to allow this server to configure your settings? Ĭlick Allow only if you fully trust the source, or if your Exchange administrator instructs you to. When Microsoft Outlook 2016 for Mac connects to a Microsoft 365 account, Autodiscover is redirected from HTTP to HTTPS, and you may receive a warning message that resembles the following:

Outlook 2016 for mac stops connect to 365 exchange