nnem.dll can't be loaded during domino server starting, NNtask doesn't exist in task manager.In the notes.ini, the 'servertasks' and 'Extmgr_addins' is right.
Both smsdom 5.x and 7.5 have same issue, nothing can be found in smsdom debug log.
It is due to the 'sametime' service start before domino server. Please review the install guide:
"To ensure the most secure configuration, the Mail Security extension manager dynamic link library file (nnem.dll) should load before any third-party Domino
extension manager. You should ensure that the nnem.dll is the first entry for the EXTMGR_ADDINS parameter in the notes.ini file.
Some third-party software are Domino add-in tasks and run as a service on the Windows operating system. These services might prevent the Mail Security
extension manager dynamic link library file from loading if they start before the Domino server starts. Therefore, these processes should only start after the after the Domino server starts.
1.Open service console.
2.Stop all domno starttime service.
3.Start domino server;
4.Start sametime after SMS domino work well.