I am developing an application, where I have a use case where I advertise a particular email id on a web site. Now, I need people to send me some information and an attachment to that email id . When I receive that email, it should trigger some action in my web application, such that I have both this document and the body of the email available to be in my web application. Then I can parse this information and take appropriate action. Let me know if it is possible to do this kind of email processing using Mandrill or Mailgun or SendGrid, and if yes, can you provide details/documention links on how this can be done.