Unable to send email using AWS SES

We have recently migrated to AWS SES for sending email in Community (lower environment). Post migration we are unable to send email and seeing the below exception.

Email Unable to Send

Email failed to send (To: -----------@gmail.com) (Subject: CS Professional Suite & Onvio Daily Digest - 20 Nov 2025)


Error Details:
We apologize, but an unexpected issue prevented the page you requested from being available. We've logged the issue so the site administrator can resolve the problem. (An error occurred when attempting to send an email.)

at Telligent.Evolution.Platform.Core.Email.SendEmailService.LogProviderError(SendEmailResponse response, EmailMessage message)
at Telligent.Evolution.Platform.Core.Email.SendEmailService.<InternalSend>d__25.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.InvokeMoveNext(Object stateMachine)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(Action action, Boolean allowInlining, Task& currentTask)
at System.Threading.Tasks.Task.FinishContinuations()
at System.Threading.Tasks.Task.FinishStageThree()
at System.Threading.Tasks.Task.FinishStageTwo()
at System.Threading.Tasks.Task.Finish(Boolean bUserDelegateExecuted)
at System.Threading.Tasks.Task`1.TrySetException(Object exceptionObject)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.SetException(Exception exception)
at Telligent.Evolution.Platform.Core.Email.SMTPEmailProvider.<SendAsync>d__8.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.InvokeMoveNext(Object stateMachine)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

Any help/suggestion will be appriciated.

Regards,
Anshuman