Hi there,

we just installed solidcp 1.4.4 on ms server 2019. We have a dc, two exchange 2019 and one enterprise server running the solidcp portal. The portal site is working fine. we added the exchange server without any problem. Creating a customer is also working. But creating a hosting space throws this error:

Page URL:
http://XXX:9001/Default.aspx?pid=Home&mid=22&ctl=create_space&UserID=6

Logged User:
serveradmin

Work on Behalf:
test

Hosting Space:
0

Stack Trace:
System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Exception: Error executing 'ADD' task on 'Hosted Exchange' HOSTING_SPACE_WR ---> System.NullReferenceException: Object reference not set to an instance of an object.
at SolidCP.EnterpriseServer.PackageController.AddPackageWithResources(Int32 userId, Int32 planId, String spaceName, Int32 statusId, Boolean sendLetter, Boolean createResources, String domainName, Boolean createPreviewDomain, Boolean createWebSite, Boolean createFtpAccount, String ftpAccountName, Boolean createMailAccount, String hostName)
--- End of inner exception stack trace ---
at SolidCP.EnterpriseServer.PackageController.AddPackageWithResources(Int32 userId, Int32 planId, String spaceName, Int32 statusId, Boolean sendLetter, Boolean createResources, String domainName, Boolean createPreviewDomain, Boolean createWebSite, Boolean createFtpAccount, String ftpAccountName, Boolean createMailAccount, String hostName)
at SolidCP.EnterpriseServer.esPackages.AddPackageWithResources(Int32 userId, Int32 planId, String spaceName, Int32 statusId, Boolean sendLetter, Boolean createResources, String domainName, Boolean tempDomain, Boolean createWebSite, Boolean createFtpAccount, String ftpAccountName, Boolean createMailAccount, String hostName)
--- End of inner exception stack trace ---
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at SolidCP.EnterpriseServer.esPackages.AddPackageWithResources(Int32 userId, Int32 planId, String spaceName, Int32 statusId, Boolean sendLetter, Boolean createResources, String domainName, Boolean tempDomain, Boolean createWebSite, Boolean createFtpAccount, String ftpAccountName, Boolean createMailAccount, String hostName)
at SolidCP.Portal.UserCreateSpace.CreateHostingSpace()

The logs on all servers are clean. No errors in the solidcp logs nor in the exchange logs. We used this guide to configure the exchange server: https://solidcp.com/kb/configuration/exchange-2013-2016-configuration/ despite being for exchange 2013/2016. Is there anything else we have to do for exchange 2019? All SolidCP-Server instances and the Enterprise Server are running and are reachable via port 9003/9002.

We would be very grateful for any helb to solve this! Thank you.