We've set up several automations through TDP that connect to smtp.office365.com to send emails. This works correctly whether email is being sent from a local copy of TDP or remotely on our TIC server.
When we try to configure SMTP mail server from within the TIC settings, we use the same server configuration as we do in the TDP automation scripts. When we click "Send Test Email", the email sends successfully through smtp.office365.com and are able to confirm that the test message is received. However, when we click "Save", we get the error message Error: Server does not support secure connections. The error message from TICWebServer:
2023-04-26 11:21:42.315 [7] [(null)] TIC.Web.PluginApplication.SimpleRestHelper [ERROR] REST API Error: <snip>
2023-04-26 11:21:42.315 [7] [(null)] TIC.Web.Filter.HandleJsonExceptionAttribute [ERROR] AJAX Error, the URL is: <snip>;
TIC.Web.CustomExceptions.CustomException: Server does not support secure connections.
---> System.Net.WebException: The remote server returned an error: (400) Server does not support secure connections..
at System.Net.HttpWebRequest.GetResponse()
at TIC.Web.PluginApplication.SimpleRestHelper.Send(WebRequest request)
--- End of inner exception stack trace ---
at TIC.Web.PluginApplication.SimpleRestHelper.Send(WebRequest request)
at TIC.Web.PluginApplication.AuthenticatedJsonRestHelper.Send(WebRequest request)
at TIC.Web.PluginApplication.AuthenticatedJsonRestHelper.Send(WebRequest request, JObject body, RequestMethod method, NetworkCredential credentials)
at TIC.Web.PluginApplication.AuthenticatedJsonRestHelper.Send(String uri, JObject body, RequestMethod method, NetworkCredential credentials)
at TIC.Web.Repository.ServerRepository.SaveSmtpServer(SMTPServer server, NetworkCredential cred)
at TIC.Web.Controllers.SettingServerController.SaveSmtpServer(SMTPServer server)
at lambda_method(Closure , Object , Object[] )
at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)
at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeActionMethodAsync()
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)