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Outlook Calandar Invitations not in correct format

Posted on 2011-03-24
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Last Modified: 2012-05-11
Now we are using exchange 2010 upgraded from Exchange 2003, people are using meeting invitations & scheduling. These work well when sent internally, people can accept, decline or tentative as they should, but when the go outside the organisation the invitations are sent as a blank email (see screenshot attached).
I have unchecked the calandar option "send in Icalandar format", that doenst work
I have cleared the outlook cache, that doesnt work
Emails are sent in HTML format or RTF & neither work invitation sent to my hotmail account
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Question by:rmvgray
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by:GundogTrainer
ID: 35207296
Have you tried temporarily disableing GFI Mail essentials on your server , it could be your disclaimer is changing the message class from calendar to to a default email.
Also does exchange deliver the mail or do you another SMTP relay for mail delivery.
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by:rmvgray
ID: 35215273
Exchange delivers email..I havnt tried disabling Mail Essentials, but will test that over the weekend
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GundogTrainer earned 250 total points
ID: 35215537
OK, it should be a worthwhile test as in your email image it displays a disclaimer but none of the text.
I have googled a possible issue with GFI and Exchange 2007 - I know you stated you are using Exchange 2010 but it may be related.

The GFI KB article is here:
http://kbase.gfi.com/showarticle.asp?id=KBID003560
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Author Closing Comment

by:rmvgray
ID: 35400331
Spot on !!
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