Event ID - 1706

Event Id1706
DescriptionEXPS is temporarily unable to provide protocol security with "ServerName.Domain.com". "CSessionContext::OnEXPSInNegotiate" called "HrServerNegotiateAuth" which failed with error code 0x8009030c ( i:\transmt\src\smtpsink\exps\expslib\context.cpp@1462 ). Data: 0000: 0c 03 09 80 ...?
Event InformationE-mail messages may not reach their destination, and senders may receive non-delivery reports (NDRs) that are similar to the following NDR: 

The following recipient(s) could not be reached:

UserName on Date and Time
The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator.
ServerName.Domain.com #5.0.0 
If you increase the diagnostic logging level for MSExchangeTransport to Maximum on the Diagnostics Logging tab of the ServerName Properties dialog box in Exchange System Manager, events 1706, 327 will be logged in the Application log of Event Viewer: 
These error codes indicate a problem where you cannot read or write correctly to the Exchange 2000 Server information stores. This problem may occur if the Exchange 2000 Server information store databases are damaged. This condition can exist if a file-level antivirus program is run on the \Exchsrvr folder and its subfolders, or on the Exchange Installable File System (ExIFS). By default, the Exchange Installable File System (ExIFS) is located on drive M.

Note The Error.exe utility is located in the Support\Utils\I386 folder of the Exchange 2000 Server CD. 
To resolve this behavior, dismount the mailbox store, defragment and fix the database, and then mount the store. For more information about resolution click on the link given below.
Reference Links E-Mail Messages Do Not Reach the Destination and Senders Receive NDRs

How to troubleshoot the "504 need to authenticate first" SMTP protocol error

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.