autodiscover.domain.de/autodiscover/autodiscover.xml

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July 23, 2017 at 7:45 pm #44845

marcus@richters-it.de
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Hi,

Microsoft Outlook / Microsoft Exchange Online tries to access Autodiscover on my Domain, but there is no autodiscover service running – itz all in the MS-Cloud.

https://domain.de/autodiscover/autodiscover.xml

This leads to the following error messages:

https://becs.com.au/wp-content/uploads/security-certificate-has-expired.png

How do I block this?

HTTP PROXY:

GET 200 http://domain.de/autodiscover/autodiscover.xml 0+0 BLACKLIST

FIREWALL:

DROP tcp opt — in ETH03.X0 out ETH00 XX.XX.0.0/24 -> IPofDomain.de tcp dpt:443
this is uncool…

Apache Access log:
XX.XX.XX.XXX – – [23/Jul/2017:21:35:53 +0200] “POST /autodiscover/autodiscover.xml HTTP/1.1” 204 3223 “-” “Microsoft Office/15.0 (Windows NT 6.1; Microsoft Outlook 15.0.4911; Pro)”

Zeroshell 3.8.0
Current Kernel: 4.9.36-ZS-64
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