Troubleshooting SQL Mail: SQL Mail Reports MAPI Logon Failure or General MAPI Failure
A "MAPI logon failure" message generally indicates that SQL Mail is incorrectly configured. SQL Mail may not be able to locate the profile to use, or the profile may not contain the correct information.
For more information on checking the configuration for SQL Mail, see Verifying SQL Mail Configurations.
See Also
Concepts
Verifying SQL Mail Configurations
Database Mail