Win32 DLL. Contains Microsoft(c) SQL Server extended ... use MAPI and MS Outlook. Copy Sndmail.dll to the directory containing the ... by default). use master go sp_addextendedproc `xp_sndmail`, ` sndmail.dll` go Example. declare @error int exec @error=master..xp_sndmail `192.168.1.1`, ... error code, 0 - completed successfully.