I have a client with a small network 15 users. Running SBS 2003, and XP Pro - Outlook 2007 on the desktop.
When my users try to send a meeting request to a recipient outside of our organization, the system tries to deliver the meeting request message to the recipient, but for some reason it cannot be delivered, so they get a delayed delivery notification. After several days, they get a cannot be delivered message.
If they send an email to the same recipient outside of our organization, it works fine.
If they send a meeting request to someone within our organization, it works fine.
I came across this KB article (http://support.microsoft.com/kb/938650
) but was hesitant to apply the patch since it did not reference SBS 2003.
Any help would be appreciated.