回答:
Outlook 2010の場合:
c:\Users\user name\AppData\Local\Temp\Outlook Logging
c:\Documents and Settings\user name\Local Settings\Temp\Outlook Logging
参照リンク:https : //support.office.com/en-ie/article/What-is-the-Enable-logging-troubleshooting-option-0fdc446d-d1d4-42c7-bd73-74ffd4034af5