My secretary tried to forward two small e-mails. They remain stuck in her Outlook 2010 outbox.
I looked at the server's application event log. It did have a red circle next to event 1009, MSExchangeMailSubmission. The details of the error are:
The Microsoft Exchange Mail Submission service is currently unable to contant any Hub Transport server in the local Active Directory site. The server may be too busy to accept new connections at this time.
How do not know how to resolve this issue (without restarting the server).
The server configuration is:
Two quad core processors.
32 GB of RAM
400 GB of disk drive space of which 220 GB is free.
Windows 2008-R2 is located on partition C
Exchange Server 2010 is located on partition D
The size of the Exchange Store is 30 GB.
We have 10 users.