Exchange 2007 / Outlook 2007 does not send meeting invite request
When I create a new meeting invite request and add say two internal recipients and the Boardroom Room Resource, the meeting invites are sent out properly. However the moment I add an external email address to the attendees list, the meeting request email only goes out to the external recipient. The internal recipients and Boardroom resource did not get any invitations and nothing shows up in their calendar. The moment I remove the external attendee (external to the Exchange domain) and send an update request the request goes out to all internal attendees. Any suggestions? I have the latest service packs installed.
April 1st, 2010 2:24am

Hi, Did you test this issue in OWA? Whether the meeting request to external address was the original meeting request? Did you test this issue from another sender? Thanks Allen
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April 6th, 2010 12:43pm

It does not work for any user in the company. If I use OWA then the meeting request does show up in my own calendar and the invite gets sent to the remote recipient, but the boardroom resource and other internal staff do not receive any meeting invites.
April 9th, 2010 9:04pm

Any suggestions?
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April 19th, 2010 5:08am

Interesting, we have the same problem. Any solution?
June 7th, 2010 6:29pm

Yep. It turned out our GFI MailEssentials SPAM software added a disclaimer to outgoing email, and in doing so it converted the email to HTML. I think calendar invites only work under RTF, so this broke it. Disabling the disclaimer seemed to work. See: GFI KB
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June 12th, 2010 4:42am

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