Command Line SMTP Mailer for Windows

 BMail simply rocks.

The other thing i use is just add Vbs script and launch it:

 

Set Msg = CreateObject("CDO.Message")

With Msg

.To = "you@yourdomain.com"
.From = "me@mydomain.com"
.Subject = "Hello"
.TextBody = "Just wanted to say hi."
.Send

End With

MsgBox "Script Complete"

Link to Command Line SMTP Mailer for Windows