XCON: MTA: Text Event Log (Evo.log)

MORE INFORMATION

Setting the Text Event Log registry value to 1 will generate Ev*.log files in the Exchsrvr\Mtadata directory. The current log is always named Evo.log. Prior logs are named Ev<number>.log with the number increasing with the age of the log. When a log reaches 5 MB in size it is renamed and a new log is begun. If, after the MTA is stopped, it is then restarted the current Evo.log file will be overwritten with a new zero-byte file. Any logged data will be lost unless the file was saved or renamed.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" online Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" online Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

To edit the registry so that Text Event Logging is turned on:

1. Start Registry Editor (Regedt32.exe or Regedit.exe, as appropriate for your version of Windows NT).
2. Go to the following key in the registry:

      HKEY_LOCAL_ SYSTEM\CurrentControlSet\Services\MSExchangeMTA
      \Parameters\ 

3. On the Edit menu, click Add Value and use the following entry:

         Value Name: Text Event Log
         Data Type: REG_DWORD
         Value:      1

4. Exit Registry Editor.

Evo.log files are often easier to read, search, and clip from when troubleshooting Exchange Server message transfer agent (MTA) issues than the corresponding Application Event Log. Evo.log files do use more technical vocabulary, though, than the Application Event Log.