Yesterday started to notice issues with one or two Outlook 2013 clients where when users try to send emails to any address, whether internal or external, a NDR would immediately come back:
Your message did not reach some or all of the intended recipients.
Subject: Earlier letter
Sent: 10/12/2014 08:03
The following recipient(s) cannot be reached:
'Joe Bloggs' on 10/12/2014 08:03
This message could not be sent. Try sending the message again later, or contact your network administrator. Error is [0x80004005-00000000-00000000].
But when using the user's OWA they could send emails fine. After trawling the internet and getting nowhere I looked at the servers event logs which didn't show anything. It was only when I noticed that Exchange SP3 Update Rollup 8 had automatically been installed on the Exchange Server on the morning of the first instance that I started to wonder.
After uninstalling the rollup package the issue has gone away. Just wanted to see if anyone else had experienced this issue with this update package?