Mapisend error code 21

Mapisend error code 21

Post by S├ębastien Comea » Fri, 26 Oct 2001 21:10:33

Message in use.... what could cause this message when I run Mapisend

Mapisend error code 21

Post by Jim Sun ( » Sun, 28 Oct 2001 14:09:56


Thank you for using the Microsoft Exchange Server Newsgroups.

- Logon to Outlook/Exchange with the same profile, create a new message,
type the same recipient without choosing "To...", then choose Tools...Check
Names to see if the name would resolve.

- Change the email address until the above successfully resolved.

- Use the successful address for the MAPISEND sample program.

The following KB article addresses this problem.

   Q183768 XCLN: Error: MAPI MapiSend Failed

Hope it helps.

Best Regards,
Jim Sun
Microsoft Support

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