I love mailinator! However tricking site scrappers may not work perfectly if the site scrappers maintained a list of websites in their "whitelist". Say if I am

I love mailinator! However tricking site scrappers may not work perfectly if the site scrappers maintained a list of websites in their "whitelist". Say if I am scrapping mailinator.com for domain names, if I see gmail.com or yahoo.com, I might just not put them in my database because they are in my whitelist.