I too am experiencing this issue, with the following circumstance:
User 1 is a delegate on Users 2, 3 and 4 calendars.
User 1 creates a meeting on User 2's calendar. If User 1 looks at User 2's
calendar after doing so the meeting appears normally. However when User 1
receives the meeting request (that says "From User 1 on behalf of User 2")
it says "This request is out-of-date" at the top. Also, when going into
User 2's calendar, User 1 is unable to add more attendees to the meeting
(Add Others is grayed out). This is only happening on User 2's calendar.
Adding meetings for Users 3 and 4 work fine. User 2 has a new iPhone 3GS.
"ITPRO" <lakh...@hotmail.com> wrote in message
news:egtbhljB...@TK2MSFTNGP02.phx.gbl...
> Messaging Environment:
>
> Exchange 2003
>
> Outlook 2003
>
> User 1 sends a meeting request to User 2,3 4
>
> User 2 is configured with delegate access to User 3, 4 Calendar.
>
> User 2 accepts the meeting request for User 3 and 4.
>
> User 2 can accept meeting request for herself and User 3 successfully. But
> when she tries to accept the meeting request for User 4 it says "This
> request is out-of-date" in the Invited Event Window.
>
> This mostly happens to Executive Assistances who are managing calendars
> for multiple Executives at the same time.
>
> User 4 also has iPhone.
>
> If you need more clarifications, please let me know.
>
> Please help.
>
>
>
>