Outlook connected but not updating
The above process changes the mail server name to the name on the certificate and the hosts file will ensure that mail traffic to this server name will be correctly directed to your mail server. *.nz, you could create a hosts file entry of anything.nz, as the wildcard will cover anything.
If they're not you may have to fiddle around with 2 server names.
Outlook Tools is a free tool; You can use it without paying anything.
However, if you feel a donation would be a nice way to support Outlook Tools and its future development, it will be very much appreciated.
The Microsoft Outlook team is also working towards a fix to handle these types of crashes and to prevent the Auto Suggest list from becoming corrupted because of this.
November 17 2017 Starting with Outlook version 1711 (build 16.0.8730), modern authentication is no longer a requirement and all Office 365 and users will have focused inbox capability in Outlook 2016 for Windows.