https://www.howtoforge.com/communit...nfig-autodiscover-for-simple-platforms.59666/ I was quite surprised that auto discovery isn't part of the current out of box build, am I missing something. It seems to me that I'll have to modify the default dns template too, and I'm not sure how to implement the suggestion above so it sticks.
There is also this: https://blog.schaal-24.de/ispconfig/autoconfig-und-autodiscover-mit-ispconfig-automail/
just to note, Microsoft have changed something in recent versions of outlook, so that automatic setup does not work with new versions when using Florian's scripts that Taleman links to. Florian hasn't had the free time to troubleshoot and update. older versions of outlook still automatically configure themselves ok, as does thunderbird. I've not looked into the method the first post links to, I would assume it was affected the same way, and if so, have no idea if it's been updated/fixed.
Reading the Readme of Automail, I discovered there is also English documentation: https://schaal-it.com/ispconfig-automail/ The link in #2 is the German version.
Yes, that's the whole cause of the issue. I'm unaware of a setup that filly works with all recent email clients.
According to MSDN the procedure for Autodiscovery has four different methods to get its settings. Upon one succeeds they are tried in order. Currently Android only implements two. E.g. for mail address "[email protected]" 1) ask https://example.com/autodiscover/autodiscover.xml (WORKS) 2) ask https://autodiscover.example.com/autodiscover/autodiscover.xml (WORKS) 3) ask http://autodiscover.example.com/autodiscover/autodiscover.xml (NOT IMPLEMENTED) 4) ask SRV resource record in DNS for example.com service description (NOT IMPLEMENTED)
Are you sure this is about the latest Outlook and Outlook 365? The above methods used to work fine on old Outlook versions, but users reported that they do not work on any recent versions. Personally, I stopped using Outlook many years ago, so I can't test it. But maybe MS changed their mind and fixed this in Outlook now; who knows? Maybe you can write an autodiscover.xml manually for your domain, place it in the mentioned folder and subdomain, and test if the latest Outlook and Outlook365 use it.
Here is a simple php script to generate it. Or just rip it from the file and customize it by hand: https://github.com/Radiergummi/autodiscover/blob/master/autodiscover/autodiscover.php