External meeting request message class change to IPM.Note

We have Exchange & Outlook 2013 wherein external recipient sent meeting requests to 3 attendendees.

out of that 1 received it correctly and remaining 2 attendendees received it as ordinary email (IPM.Note) not as meeting requests

August 18th, 2015 4:48am

Hi,

Are the 3 external recipient in the same domain?

Do the two attendees use Microsoft Outlook as their mail client? If the external recipients use mail clients which cannot process meeting requests well, this issue may happen.

In addition, do you have the external users added as contacts in your Contact folder? If so, delete the external users and then test to see if this issue continues.

Please let me know the result.

Regards,

Steve Fan
TechNet Community Support

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August 19th, 2015 3:26am

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