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JSI Tip 1672. The Mapi Spooler Has Shut Down Unexpectedly?

When you use the Windows Messaging client to send an attachment via internet e-mail to a POP3 mail server, you may receive the following message:

Microsoft Windows Messaging Subsystem: The MAPI Spooler has shut down unexpectedly. Close all mail-enabled applications before attempting to log on again.

When you restart, the message repeats.

This problem occurs if the attachment has no extension, just a file name.

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