No, meeting requests sent over the internet work just fine as long as there
is no block place at their firewall and you have sent the item using Outlook
Rich Text format.
What do your recipients see, if anything?

Signature
Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact. Due to
the (insert latest virus name here) virus, all mail sent to my personal
account will be deleted without reading.
After furious head scratching, JCA46304 asked:
| I'm trying to schedule a meeting with someone outside my company by
| using the Meeting Request function in Calendar. Both of our
| companies have Office 2003, and we both use Outlook - but he never
| seems to get the meeting request. Am I doing something wrong, or do
| we have to be on the same email server in order for this function to
| work, as it does between me and my colleagues? Thanks!
JCA46304 - 14 Jun 2005 16:48 GMT
So far he sees nothing at all - but I tested this with one of my own external
mail addresses, and got it fine. I had to enable the iCal (Internet
Calendar) option for my Outlook at home though. The other guy's checking to
see if it's enabled on his PC at work. Thanks, Milly!
> No, meeting requests sent over the internet work just fine as long as there
> is no block place at their firewall and you have sent the item using Outlook
[quoted text clipped - 8 lines]
> | we have to be on the same email server in order for this function to
> | work, as it does between me and my colleagues? Thanks!