Is the user sending an attachment - either vcard in the sig or a file they
attached?
Is the user signing it with a digital signature?
--
Diane Poremsky [MVP - Outlook]
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"WilliamLin" <(E-Mail Removed)> wrote in message
news:43D3726C-9AF3-47A0-84FD-(E-Mail Removed)...
> I am having problem with one of users using Outlook 2007 with Exchange
> 2007.
> Outlook is configured to use Outlook.pst file as the default folder.
> Whenever
> user replied to external email, the server returns the error below:
>
> #550 5.6.0 M2MCVT.StorageError, storage error in content conversion ##
>
> I uninstalled and reinstalled Office 2007. The problem was solved for a
> while. Later, it comes back again.
>
> I appeciate anyone can help on this problem.