Email templates can be used to send out automatic emails using a pre defined template and variable dynamic content. To create a new email template go to Maintenance > Email Templates and click the button.
This will bring up a new window called NEW Email Template, here you can add a title, subject and main body of the email. Ultimate commands can be used in the body of an email template. After this you can add attachments and copy people in (regular cc or bcc).
Finally you have the option to select auto log in links however these can be dangerous as if anyone is forwarded the email they may be able to log into the account of the initial recipient.