I've picked up a couple of these automated messages today in our ticketing:
"Unable to deliver message to randomuser1@domain.com. Error message: An existing connection was forcibly closed by the remote host."
Unable to deliver message to randomuser2@domain.com. Error message: Timeout::Error
Also today got an error from another user on his smartphone:
"Microsoft.Exchange.Clients.Security.LiveTransientHRESULTException: LiveId authentication code has returned error 0x80049234 PP_E_RPS_REASON_POST_TICKET_TIMEWINDOW_EXPIRED, indicating that there's a temporary problem with the remote server. Please check the Application event log for detailed information and retry the operation later. ---> System.Runtime.InteropServices.COMException (0x80049234): Post ticket time window expired."
I'm guessing it's an Office365 latency issue, as all these mailboxes are there (still hybrid setup though). They were intermittent. No service disruption noted in O365 dashboard though, although that's not a perfect indicator.
My question: If Office365 does have such blips, is it possible to increase this timeout window so the messages do eventually get through?
Thank you.