Troubleshooting SQL Mail: SQL Mail Works But SQL Server Agent Mail Does Not
In Microsoft SQL Server 2005, SQL Server Agent Mail can use either Database Mail or SQL Mail to send e-mail. When SQL Server Agent Mail is configured to use SQL Mail, the mail profile that SQL Server Agent Mail uses is the profile for the account that SQL Server Agent runs under, rather than the mail profile for the account that SQL Server runs under.
When SQL Server and SQL Server Agent do not run as the same Microsoft Windows account, problems with the mail profile in SQL Server Agent Mail may not affect SQL Mail. In this case, troubleshoot the specific problem with the SQL Server Agent Mail profile.
See Also
Concepts
SQL Server Agent Mail
Database Mail