Question : As the meeting organizer, you do not need to respond to the meeting

Issue,
    I am working on a coexistence between Domino 7.02 and Exchange 2007, I am having an issue with calendar invites sent from Domino users to  Exchange users, the exchange user in outlook receive the invites as an e-mail message and not a calendar invite, when he opens the e-mail he does not have the option to accept, decline or propose new time, Also when he opens the attached ics file he gets
As the meeting organizer, you do not need to respond to the meeting
even that he is not the organizer.
From what I have found, the Ics file attached is malformed, in the section for meeting

ORGANIZER;CN="John Smith/Employer":MAILTO:

the e-mail address is missing in front of mail to, when I open an Ics file that show as invite, the organoizers e-mail address is there ie
ORGANIZER;CN="John Smith/Employer":MAILTO:jsmith@..........com
Has anybody run into this issue?
Thanks.

Answer : As the meeting organizer, you do not need to respond to the meeting

First, get your Domino Servers to R7.0.3, and FP1 is good.  This should address some of the issues related to getting properly formatted calendar information out of Domino and into Exchange.  And then the other trick to do (this seems contrary to any logic, but it is related) is to check the Location document of the Notes user that is sending the calendar information to Exchange.  What you need to do is look at the Mail tab on the current location document and check the "Domino Mail Domain" field.  The "Domino Mail Domain" field must be populated with the Domino Mail Domain for that user's Domino infrastructure, this is not the internet domain.

The Domino Mail domain is stored in lots of places, you can check Person documents in the Domino Directory (NAMES.NSF) or the Directory profile document in the Domino Directory.

It appears that without the Domino Mail Domain being identified in the user's Location document, the calendar entry that gets generated by the Domino Server to be routed out does not include the Mailto attribute for the Organizer in the ICS file.

Good luck!