I want to implement a feature like Facebook's "reply to messages in email", which basically adds a unique identifier to the reply-to address of any message, allowing them to parse the reply content's on the server and add it to the specific thread in their site.
To do this I would need a service that forwarded every received email to a particular address or web service.
I know I can create my own SMTP server or use an existing software for this, but I was wondering what options are out there of third party services that did that for me.
I found SendGrid's Parse API which does exactly what I need:
http://docs.sendgrid.com/documentation/api/parse-api-2/
But I tried it and it didn't work and their support people weren't able to help me during two straight days, so I'm looking for options.
Do you know of any services similar to this, to which I can point my MX records to and they will post to a WebService of my own whenever an email for @mydomain.com is received?
Thanks