Marks a permanent mailbox for deletion.

    Format

      SYS$DELMBX  chan

    C Prototype

      int sys$delmbx  (unsigned short int chan);

1 - Argument

 chan

    OpenVMS usage:channel
    type:         word (unsigned)
    access:       read only
    mechanism:    by value
    Number of the channel assigned to the mailbox that is to be
    deleted. The chan argument is a word containing this number.