Email ---> Php/MySQL script

I am wanting to create a script where someone can email a message to complaints@mysite.com and then a php script will take this message and its content/sender/date/etc. and add it to a sql table. I am a good PHP developer and I have alot of experience with mysql. I am just not able to find anything that does this sort of thing, or the method on how to do it.

Really has nothing to do with MySQL. Has all to do with retrieving mail from the server. After that, it's same as any other data source.

Right?

So...
http://www.lmgtfy.com?q=retrieve+mail+from+pop3+server+php