So I'm sending this poster around the world, and I need to e-mail people to tell them the poster is on the way there. So I want a script that will automatically send a pre-composed e-mail to the next person on the e-mail list. I'm thinking they'd go to a site and check off a box that they sent the poster, and they'd hit send and that would execute the script to auto send the e-mail. Is php the language I want to use to do this?