|HTML email example|
Solution described here requires only some knowledge of HTML and CSS. But you have to notice that creating an html email can be a very hard work to get it working on most email clients. Some popular clients like GMail or Outlook have lack of support for several CSS definitions. Though there are several guidelines that help to achieve cross-email client support. So if your layout isn´t too wicked it won´t be magic to create an individual mass mailing.