My guess: command line is "wrapping."  

Your email app may be able to control that, but how about either a preceeding 

// JOB PW=[passwordOmitted]

and elide the corresponding keyword on the ADD line

or perhaps an  ADD IMPORT JOB ?

/P

At 16:58 1/27/2007 Saturday, Stephen C. Nill wrote:

>>> add [listNameOmitted] [emailAddressOmitted] John Smith
>>The  ADD command  requires  password validation  when  issued from  remote
>>locations. Please specify a "PW=" keyword followed by a suitable password.
>>Acceptable passwords are: your personal password (obtained through the "PW
>>ADD"  command) and  the  password of  the STEWARDSHIP  list.  If you  have
>>forgotten your password, send a "PW RESET" command to reset it or, if this
>>fails,         contact          the         LISTSERV         administrator
>>(owner-LISTSERV@[domainOmitted.com]) for assistance.
>>
>>(note - the request originated from [omitted])
>>
>>>
>>Unknown command - "[passwordOmitted]". Try HELP.