Send Notification Failed
We have a strange problem sending mail to other domains, our standard domain is fine, but when we send to other domains (which are all within the same exchange environment) we get a send notification failed. This started after an upgrade to 5005 on the 10th Oct. The sending to other domains worked fine until this time. Any ideas? Sending within Outlook using the same user data is fine, no problems. Has anything changed on the sending side in this release? Can we role back?