How do I troubleshoot the task sync? I followed instructions and I believe the EWS API is installed OK and the trust relationship is there. Both SharePoint and Exchange are on-prem 2013 with the latest CUs.
"We weren't able to sync your tasks. This could be because your mailbox is on an Exchange server that isn't supported for syncing tasks. Please contact your admin..."
There is a correlation ID but I honestly do not know what you can do with that. I assume it is in some log file?
Name : EXCHANGE13 AutoDiscoverServiceInternalUri : https://exchange.xyz.com/Autodiscover/Autodiscover.xml
04/09/2018 13:55:58.68 w3wp.exe (0x1F04) 0x06B8 SharePoint Server Search Exchange Integration ah9c2 Medium AutodiscoverLocalException: Autodiscover blocked a potentially insecure redirection to https://exchange.xyz.com/autodiscover/autodiscover.xml. To allow Autodiscover to follow the redirection, use the AutodiscoverUrl(string, AutodiscoverRedirectionUrlValidationCallback) overload. 0adf5b9e-fc44-a017-22e1-e9a3888bda7d
04/09/2018 13:55:58.68 w3wp.exe (0x1F04) 0x06B8 SharePoint Server Search Exchange Integration aiwxi Medium SearchServiceApplication::ExchangeAdapter::SharePoint CorrelationId:; Exchange Request Id:; Diagnostic Info: 0adf5b9e-fc44-a017-22e1-e9a3888bda7d
04/09/2018 13:55:58.68 w3wp.exe (0x1F04) 0x06B8 SharePoint Server Search Exchange Integration ai1pi Medium Autodiscover Diagnostics EWS Client Version: 15.00.0516.014 0adf5b9e-fc44-a017-22e1-e9a3888bda7d
Get-ClientAccessServer |fl identity,autodiscoverserviceinternaluri
The output is now:
Identity : EXCHANGE13 AutoDiscoverServiceInternalUri : https://autodiscover.xyz.com/Autodiscover/Autodiscover.xml
I have a host name of autodiscover pointed to the IP of the server. The cert is OK as it is a wildcard.