Lettermelater is free web service that will allow you to schedule your mails and send it particular date. It is very simple and easy to use anybody. For using this service you must sign up in lettermelater.
Send mail simply sign in lettermelater type your message and select data you want to send. Emails can set carbon copies (cc) and blind carbon copies (bcc). You can also send scheduled txt messages to your cell phone. You can import your contacts from other services via CSV file.