[Building Sakai] adding 100s of guest accounts as non-participants

[Ian Goh (Exchange IMAP)]

Hi Sakai Dev,

One of our groups wants to add possibly hundreds of non-participants to 
a site using email addresses in the non-participant field.  This is for 
an open house, so these "students" wouldn't be in our SIS or even in our 
directory.

Is there a limit to how many email addresses (one per line) you can post 
into the non-participant field?  I've done 100.  But rather than drive 
larger and larger trucks over the bridge until it stops working, does 
anyone know what the limit in the box is?

Also, how to deal with the passwords that get automatically generated?

Anyone done it something similar?

Yours,

- Ian