One of the little-known freebies Gmail offers is a portable SMTP server to send mail from any network for any email address. In your email client software, under Outgoing mail, set the SMTP server ...

You don't have to configure a recieving email server that actually works, just tell it localhost as the SMTP server and send something.

Input your SMTP settings within the New Virtual Server Wizard to configure the server. Configure your email clients -- like Outlook Express or Thunderbird -- to use the new SMTP server.

The Mercury Mail Transport System is an e-mail server that can be installed on client machines, making it unnecessary to run Exchange Server or use another dedicated server.

To set up SBC Global email on your iPhone, you will need the POP and SMTP server addresses for your SBC Global account.