Create plain text file within your favorite text editor and format it as you like (using indents, line feeds, tabs, etc.). Then instead of typing a message after -TEXT command, use -USEFILE command and specify the message text file.
C:\>febootimail <email params> -USEFILE message.txt
Alternatively, it is possible to create formatted HTML file and send it using -HTMLFILE command.
C:\>febootimail <email params> -HTMLFILE message.html
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