The following options allow you to specify the program options:
Log deleted messages
MMM can log messages, which were automatically deleted by filters. Please note that messages, which you have deleted manually will not be logged. Log file is named msgdeleted.log and is placed in same folder, where is magic.exe. You can change maximum size of log file, by reaching this size log will be truncated. To disable automatic truncation, set limit to 0. In this case you will have to delete this file yourself from time to time.
Use special color for messages from friends
Messages from authors in friends list (friendlst.txt) can be highlighted with special color
Allow 1 instance only
This option will prevent another instance of MMM from starting; instead it will activate already running instance so you can see it.