During a manual switch procedure from the QMM console, the following is displayed within the EMWmigration.log file.
1/16/2009 10:57:40 AM aeEMWGUIForms::CMBRedir::m_Log_OnError| System: 1/16/2009 10:57:40 AM | Source: CMBMSwitcher::NotifyProf | Severity: 5 | Number: 4851 | Description: Posting EMWProf switch notification message to the mailbox '/o=Source/ou=First Administrative Group/cn=Recipients/cn=user'.
There is no concern, please see resolution for more details
This does not indicate a problem. The "m_Log_OnError" entry is not actually an error, but the name of the function being called. This function is part of the MBredirector aspect of QMM responsible for setting redirection and other switching behaviour.