Support Autodiscover MS-OXDSCLI (21.0)

[HLFH]

• Check Outlook AutoDetect ; GET request "https://prod-autodetect.outlookmobile.com/detect?services=office365,outlook,google,icloud,yahoo&protocols=rest-cloud,rest-outlook,rest-office365,eas,imap,smtp" with Headers 'x-email' => '[email protected]'.
• Reject any Autodiscover Exchange ActiveSync MobileSync XML requests ; NS http://schemas.microsoft.com/exchange/autodiscover/mobilesync/requestschema/2006 ; related to: Add support for third Autodiscover.xml possible URL rseichter/automx2#7
• Reject any Autodiscover Exchange ActiveSync JSON request ; related to: New JSON-based AutoDiscovery  gronke/email-autodiscover#4 ; GET /autodiscover/autodiscover.json?Email=[email protected]&Protocol=ActiveSync&RedirectCount=1 HTTP/1.0 ; might help: https://github.com/mailcow/mailcow-dockerized/blob/master/data/web/autodiscover-json.php
• Have a look at Z-Push on Arch Linux: only works with ActiveSync clients and undocumented auth flow
• Have a look with autodiscover-email-settings: does not support signed .mobileconfig profiles & Outlook 2021 for Mac like automx2/automua
• Check so-called Autodiscover V2 and so-called Office 365 support ; might help: https://blog.rmilne.ca/2022/01/12/office-365-autodiscover-lookup-process-revisited/ and https://ingogegenwarth.wordpress.com/2018/05/22/get-autodv2/
• Fix Autodiscover Outlook XML request implementation: done with 2022.6.5
• Do some testing with Fiddle Everywhere
• Have a look with Kolab Autoconf: this is crap, only Apache, not Nginx
• Test https://testconnectivity.microsoft.com/tests/O365Ola/input with automua: this is crap and is messing with TLS: Handshake failure with Microsoft SSL Server Test #11
• Analyze notes on Autodiscover and Office 365

[HLFH]

Outlook 2021 for Mac is using Outlook AutoDetect.

HTTP method: GET
URL: https://prod-autodetect.outlookmobile.com/detect?services=office365,outlook,google,yahoo,icloud&protocols=all&timeout=20
HTTP header: X-Email with content "[email protected]"

And Outlook on Windows is unreadable/crap regarding logging!
But the Outlook Test E-mail AutoConfiguration function shows am Autodiscover endpoint that is working, so the problem is elsewhere.

[HLFH]

The main protocol documentation is here

We may want to give XML responses with MS-OXDSCLI error codes when the wrong namespaces and endpoints are requested: Autodiscover Exchange ActiveSync MobileSync XML & Autodiscover POX XML & Autodiscover Exchange ActiveSync JSON.

[HLFH]

I need to test autodiscover requests with MS Exchange Servers.
Microsoft proxy servers are not documented, so best way to know more is to try it out with MS Exchange Servers.

Some details about the autodiscover behaviour.
Some issues #1, #2, #3

Have a look at the new Outlook (project Monarch)