MSGCLAS = ([A][,B][,C][,D][,E][,F][,G][,H][,I])The MSGCLAS option defines the types of MFX messages to be issued. The message type is determined by the character at the end of the message number.
If this option is not specified, message types A, B, C, D, and I are the default. Type A messages are critical error messages, and types B, C, D, and I are informational messages. (Note that only types A, B, C, D, and I are meaningful at this time.)