I guess this is sort of two questions that are tied together.

Related questions have discussed how to read and parse email using pop3. I need to be able to do this, however, I want this to be able to work with any email address I need.

I am trying to allow users to submit content by emailing it to a unique email address, which will automatically know to which account the content should be associated.

Is there a good way to create these email addresses on the fly and check these email accounts so for content submissions?

Alternatively is there a way to make a "wildcard" email account which gets all of the email sent to the domain and allows me to see what the to address was?