New on PHPBuilder.com today there's a tutorial showing you how to download and parse messages from Google Mail. In their case it's grabbing and parsing submissions from a form.
Some friends of mine publish a literary journal that accepts submissions via email. At their request I wrote a script to download messages from the journal's Gmail account and do some simple parsing tasks. Most of the submissions are made using an HTML form and a corresponding mailer script on their website, so I knew the precise format of the incoming messages (see Figure 1). What I didn't know was how to access Gmail in PHP.
He tried out the libgmailer script first, but ran into roadblocks until he realized he could use something PHP already had - the imap functions. With these he shows how to make a connection to the Gmail servers, get the listing of messages and pull out the body for the one you want to parse.