Cfmail
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Sending Using Default SMTP
This method will allow you to send through the servers default SMTP server. You'll need to make sure and leave out the server, username, and password attributes when using this method as shown below:
<cfmail from="#from#" to="#to#" subject="Sample CF e-mail"> This is the body of a test email. </cfmail>
Sending Using External SMTP
This second method will allow you to send through an external SMTP server such as mail.example.com. It requires specifying the server, port, useSSL, username, and password attributes as shown below:
<cfmail. server="mail.example.com" port="25" useSSL="false" username="example@example.com" password="mySecretPassword!" from="#from#" to="#to#" subject="Sample CF e-mail"> This is the body of a test email. </cfmail>