Weird configuration request from Outlook

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This morning, I woke up to the following, somewhat disconcerting message:
(I’ll translate it, because the message was in my system language [Dutch])

Microsoft Outlook
Will you permit this website to configure server settings for my email address?

“https :// autodiscover/autodiscover . xml”

Your account has been diverted to this website for settings.
You are advised to only permit settings from sources you know and trust.

 
The site referred to is a site with some static information that does include my email address, but not in plain text.

It looks suspicious to me. Would anyone have any ideas, please?

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Apparently due to Autodiscover for Exchange redirection from HTTP to HTTPS:

 

When Microsoft Outlook redirects an AutoDiscover operation from HTTP to HTTPS, you may receive a warning message that resembles the following:

Allow this website to configure user1@contoso.com server settings?
https://mail.cpandl.com/autodiscover/autodiscover.xml
Your account was redirected to this website for settings.
You should only allow settings from sources you know and trust.

When this warning message occurs, you may choose not to be asked about the specific website again.

You or administrators may want to suppress the initial warning message for a specific HTTP redirection that is expected in your organization. This article contains information about how to do this.

How to suppress the AutoDiscover redirect warning in Outlook

 

Further information here:

Unexpected Autodiscover behavior when you have registry settings under the \Autodiscover key

 

And here if you’re using Office 365:

Outlook Click-to-Run Optimizes AutoDiscover for Office 365

Outlook profile doesn’t resolve via Autodiscover for user mailbox moved to Office 365

 

2 users thanked author for this post.

Elly, Lugh

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