Does Outlook continue to auto-discover account settings for already configured accounts? Can it be prevented?

Posted by Oliver Salzburg on Server Fault See other posts from Server Fault or by Oliver Salzburg
Published on 2012-09-24T11:29:34Z Indexed on 2012/11/11 11:08 UTC
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Filed under:

exchange

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outlook

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autodiscovery

fail2ban just locked me out of our website because something from my desktop was hammering port 443 on the server (which is not in use).

I saw my IP also requesting "GET /autodiscover/autodiscover.xml HTTP/1.1", so I assume that's what's going on on port 443 as well.

But I only have 1 email account configured in Outlook and it's working just fine.

The account is for the address [email protected] and said server will answer for example.com, but that server is not our MX and it is also not configured as an Exchange server in my mail account.

So, why is Outlook still trying to retrieve those auto-configuration settings?

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