We have the same issue - all invitees are internal
Moreover, some Accept but the Notification does not get to the Inviter

   
    ----- Milly Staples [MVP - Outlook] wrote: ----
   
    What version of Outlook?  Are all invitees internal to the same Exchang
    organization?  Are the ones who do not receive the Accept option external
   
    Try this - for invitees who are external to the Exchange organization, righ
    click on the resolved address, select properties and at the bottom, chec
    the option for Rich Text Format
   
    --
    Milly Staples [MVP - Outlook
   
    Post all replies to the group to keep the discussion intact
   
   
    After searching google.groups.com and finding no answe
    Tracy Williams <twilliams@dietrichdesigngroup.com> asked
   
    | We send appointments out through the invite attendee
    | option. On some computers, the option to accept-tentative
    | decline is given when the email is opened. On others thi
    | option doesn't appear. Does anyone know what setting o
    | option needs to be changed on the sender or receivers en
    | to obtain the response menu? Thanks
   
    | Trac