#NET FOLDERS#: Synchronization of Calendar

[NeoWalker]

I have a user who is on Exchange 5.5 and is receiving the following message. She does not seem to have made any kind of calander/meeting request to this person.

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From: System Administrator
Sent: 08 May 2003 09:25
To: username@coutry.company.com
Subject: Undeliverable: #NET FOLDERS#: Synchronization of Calendar

Your message did not reach some or all of the intended recipients.

Subject: #NET FOLDERS#: Synchronization of Calendar
Sent: 08/05/2003 09:25

The following recipient(s) could not be reached:

username@country.company.com on 08/05/2003 09:25
The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator.
<exchangeserver.country.company.com #5.0.0>

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Can anyone help on this one?

Thanks

NW