Hai, i can say, for this topic, it is all working now.
Only adding Davical with z-push makes it very unstable, but that is me i think, missing settings.
I’ll open a new topic for that and mark this one solved.
So basicly how im setup now, i’ll share it so other can use it/learn from it.
1 - default (catch-all-unconfigured ) host, contains the 302 redirects to mail-host
Redirect 302 /AutoDiscover/AutoDiscover.xml https://mail.domain.tld/Autodiscover/Autodiscover.xml
Redirect 302 /Autodiscover/Autodiscover.xml https://mail.domain.tld/Autodiscover/Autodiscover.xml
Redirect 302 /autodiscover/autodiscover.xml https://mail.domain.tld/Autodiscover/Autodiscover.xml
2 - server host, the default site for the server, (domain.tld), same as above the 302 redirects.
3 - mail.domain.tld host, contains z-push + activesync + autodiscover
+ aliasname autodiscover.maildomain.tld
! BOTH mail and autodiscover must have a correct SSL Certificate.
4 -SRV records for autodiscover is set in the DNS to https://mail.domain.tld
5 - All other new sites, in domain.tld get the 302 redirects to mail host is all we need now, as shown in step 1.
And resulting in, windows Mail/Android (gmail) and IOS (gmail) correctly configuring with autodiscover for mail contacts and calendar.