Binary package “nbsmtp” in ubuntu karmic
Simple MTA to send your mails to another mail server via SMTP
This tool is used when you don't want a big MTA on your box. Reasons are maybe
if you want to relay your mail over the one of your provider or you have a
powerful mail server in your company which manages the queue. This means that
nbsmtp does not manage your local mail queue, it does only send it to a hub.
The above is all it does. To use nbsmtp you will also need an account on a
SMTP-server which allows you to relay over it.