We operate an automotive classified website. One of the tools we are developing is a manual craigslist posting tool. Our users have the ability to take an ad generated on our site and automatically pre-fill that same ad into a Craigslist post in seconds. How it works is, after a vehicle is listed on our site the user has the ability to post that ad to Craigslist with all the photos and html included without having to copy and paste anything. Here?s the sequence of events: 1.) Post vehicle to our site 2.) Click the ?publish? link 3.) Choose the ad template and Craigslist location and click continue 4.) Our site opens up a Craigslist window and populates the ad for the user 5.) User clicks continue and solves the Captcha The issue takes place between our system populating the ad and then the user clicking continue and solving the Captcha. This is an issue because Craigslist sees our IP address when our site opens the new window and populates the ad. Then the user takes over and finishes the ad with their own IP address. Craigslist filters don?t like the double IP address and half our ads get ghosted. What we need: After our site generates the ad to be placed on Craigslist we need a way to copy and paste that info into the corresponding locations on Craigslist (Title, Price, Location, Description, and 4 photos). All the communication with Craigslist needs to look like it?s coming from the users IP address and nothing is coming from my servers. Anyone with experience or suggestions would be appreciated.