Hi there,
I am also have the problem that the app reports that the adress is not a mattermost server. I was thinking about the nginx redirection causing the error. I removed the redirect and now it is possible to connect via port 80 without invoking the certificate. The cert is a signed valid wildcard certificate for our domain.
Using the IOS app produces a team URL not found.
Any help would be appiciated.
Thanks in advance
Andreas