I had a specific requirement to generate a CSV file and send the same as an attachment in a mail, without saving it at any physical location. I am listing here the way to do it. For further read Mail in Magento Add attachment to order email in Magento
Tag: Attachment
Attachment in mail in PHP
Send email from components
While working in Joomla CMS, many times need arises to send mail from the components. Joomla has a class defined for doing this. I am listing here the method for sending mail.