You can define yourself a password with the PW command, i.e.
 
  TELL LISTSERV PW ADD pass
 
and then simply use 'pass' as the password. You can also define a password
associated to the PUT FAC you are using in a specific FILELIST, as in
 
*+ ABC= 556@OREGON1 David Boyes
*+ ABC= PW=pass2
 
and use 'pass2' to store files in this filelist and 'pass' for other
filelists. Send me mail directly if you need more specific info.
 
Jose Maria