How to Fix Autodiscover-s.outlook.com Redirect Warning Alert

Outlook is a popular E-mail service own and control by Microsoft. However, if you start seeing the Autodiscover-s.outlook.com redirecting warning message when you are trying to log into your outlook account and it gives you concern, you can disable the redirect warning and stop seeing this.

The real message when the redirect warning popup reads: Outlook was redirected to the server Autodiscover-s.outlook.com to get new settings for your account <emailaddress>. Do you want to allow this server to configure your settings?https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml? Click Allow only if you fully trust the source, or if your Exchange administrator instructs you to.

If you are seeing this consistently on your Outlook Mac or Outlook Windows, should you trust the warning message or discard it?

Autodiscover-s.outlook.com Redirect

Is the Autodiscover-s.outlook.com a Malware?

The warning message can be scary when the source is not trusted. However, the warning message is not a malware, it is the Microsoft database for technical information on their products.

And Outlook being one of Microsofts product, the warning message will popup and instruct you to either add it as a trusted source or not.

So, the Audiodiscover-s outlook com warning message that popup, when you want to log into your Outlook account, is not a malware.

The Symptoms of Audiodiscover-s.outlook.com

When the Microsoft Outlook 2016 for Mac connect to Microsoft Office 365  the platform Audiodiscover will be redirected from HTTP to HTTPS, the secure version of Microsoft Outlook 2016. For this direction, a warning message may popup which look like the highlighted message below.

Outlook was redirected to the server Autodiscover-s.outlook.com to get new settings for your account user@domain.com. Do you want to allow this server to configure your settings?
https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml
Click Allow only if you fully trust the source, or if your Exchange administrator instructs you to
This warning message can be disabled and it will stop showing the redirect warning message on Microsoft Outlook 2016 when you want to sign into your account.

What is autodiscover-s.outlook.com

Autodiscover-s.outlook.com is an Outlook 2016 connection error message that is blocking Outlook from setting up a new profile by using what is known as “Exchange Autodiscover” for an exchange online mailbox in your Microsoft Outlook 365.

is Autodiscover-s.outlook.com Safe

Yes! It is safe to sae is autodiscover-s.outlook.com is safe. The reason being that Microsoft is aware of the alert and provisions are made to fix the Outlook 2016 alert on your Mac.

Although the alert “outlook was redirected to the server autodiscover-s.outlook.com to get new settings for your account” looks scary but it can be fixed within a short time.

Follow the steps below to learn how to fix autodiscover-s.outlook.com security alert and othe related warning messages.

Autodiscover-s.outlook.com security Alert

You need to understand the Outlook or ActiveSync security alerts when you are using the program. The autodiscover-s.outlook.com security alert include security certificate from trusted certifying authourity, security certufucate date is valid and the name on the security certificate is invalid or does not match the name on the site.

When you see this autodiscover-s.outlook.com security alert, it implies that the information you are trying to pass or exchange with the site cannot be viewed or the information has been modified by another person. So, the certificate cannot be authorized.

However, for macOS users the alert message is a bit different. Firstly, issue verifying the certificate in which if the certificate can’t be verified, your device will not be able to establish a secure connection with the service on the source because the certificate is either missing or cannot be found or its interediate.

Also, you may run into the Autodiscover-s.outlook.com security alert on iOS when using ActiveSync if the source or certificate cannot be trusted.

https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml

https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml is part of the warning message or alert that you received when your Microsoft Outlook 2016 on your Mac connect to a Microsoft 365 account and the exchange audiodiscover is redirected from a non-secure access to a secure access, that is, from http to https.

See the full message below!

Outlook was redirected to the server Autodiscover-s.outlook.com to get new settings for your account user@domain.com. Do you want to allow this server to configure your settings?
https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml
Click Allow only if you fully trust the source, or if your Exchange administrator instructs you to.

When this warning message appears you can choose “Always use my response for this server” and choose “Allow” so that you will not be asked each time you try to connect to this particular server again for the Outlook 2016 version for your Mac profile.

Outlook was Redirected to the Server Autodiscover-s.outlook.com

If you kept on seeing outlook was redirected to the server autodiscover-s.outlook.com to get new settings for your account; below are the steps to take to suppress it on Outlook 2016 for Mac users.

  • Install the December 13th 2016 version of the Outlook 2016 for your Mac with the version number 15.29.0 or versions that are high than that. But the version 15.29.0 is the minimum you ca install for this to work.
  • Close the Outlook 2016 if you are using it or it’s running in the background.
  • Open your Mac terminal. You can do just that following the procedures below:
    • Go to Finder >> Go Menu >> Utilities >> Terminal.
    • Using your Mac search box, search for Terminal and double click on the search result to open it.
  • Copy and paste the command below once the terminal window is opened and click on the “Enter” button on your keyboard.
defaults write com.microsoft.Outlook TrustO365AutodiscoverRedirect -bool true
  • Click on the “Terminal” menu and choose “Quit Terminal.”

Fix Autodiscover-s.outlook.com Redirect 

Follow the steps below to fix the redirect warning.

Quit Microsoft Outlook from running. On your Desktop to Filter and find Utilities. Double tap the Terminal application. In the Terminal command, copy and paste this command “defaults write com.microsoft.Outlook TrustO365AutodiscoverRedirect -bool true without quotes and click on the Enter button. Navigate to the Terminal Menu and click on Quit Terminal.

Note: The command line above is case sensitive, so make sure it is written or copied the way it’s without a mistake. Do not delete space where added and do not add period where it’s not added.

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