I use Google Apps email to send out details of a product I sell to people who enquire about it via a web form.
After a month or so I go through my Sent Mail folder and send a follow up email to all those I haven't heard off. Each email is the same except for the person's name in the greeting.
So in summary, periodically I need to send the same email to recipients in my Sent Mail folder that meet certain criteria: I emailed them in the past 2 months, the subject of the email was "My Super Product", I haven't had a reply off them since my last email.
Is there any tool available that can do this automatically?