==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
======== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
======== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
iRedMail 0.9.8, downloaded two days ago.
Ubuntu 16.04 u3
MySQL backed
Nginx Webserver

do NOT have iRedAdmin-Pro, still testing before I spend that much money.
Thunderbird 52.8.0 64bit with Lightning. Can get email but not calendar
iphone 8+ with IOS 11.4 as of last night, 11.3 yesterday with same errors.

***Edit****
Looks like the stanza that should be there for Nginx isn't, so no Dav for anything.

And so far all I have found is a configuration for Apache, and of course this instance is running Nginx.
Wow, so close, thought I had a product that worked out of the box....

****Edit again*****

Cardav actually connected to by my iphone, found a different URL for it than Thunderbird.
Caldav refuses to connect using SSL. from same phone.

****Last Edit*****
iphone connects but does not see or receive any data. Thunderbird with the connector refuses to connect.
We're done here. Fails testing. Moving on.