Recieve email in your web app
Make a recipient,
Tell it where to POST,
Emails sent to the recipient you created will be POST'd to you app. Bask in the glorious data.
Use it for free! I wanted to be able to recieve emails in something I was building recently but I didn't want to have to set up a whole email server just to get a few emails in. After some research, I found that Google App Engine lets you receive emails with their API so I built up a quick app. Once I set it up, I figured I should share it. I hope you can find it useful! You can check the FAQ for more about emailizaion and some ideas for using it.
Roll Your Own
I made Emailization on Google App Engine with Django. If you want to run a copy yourself or customize it for your own needs I've put the project up on Github. Also, I have a super basic app (another Google App Engine app) that just recieves and POST's emails if you want that too. Its pretty barebones, but all GAE ready in case you need something more fine tuned.