With contribute cs3 I can not add another user to the role of
publisher - somehow when I first created a connection key (I do not
have the publishing service) a user was created as a publisher and
an email sent. Now I am trying to send another connection key to
another user but while the email "seems" to go, no email is sent
and no additional user is created.
I tried the same, it is working fine for me.
I created a FTP connection, Administered the site and send a
connection key as publisher via email to firstname.lastname@example.org.
Again i send another connection key for publisher and send it
via email to email@example.com. Both the users received the connection key
and able to connect with those keys.