I want to test out the return on investment of sending out hundreds of emails to people in my niche. Say for example I'm on a plumbing forum and members their post their site. I'd like to collect their sites, and email them directly. I don't want to flat out spam though. I want VA to visit the site, find email/contact form, and send a personalized email. What is my safest way of sending these emails out without a) ending up in their spam box and b) closing my email account? I have about 50 hotmail/gmail/aol/yahoo email addresses, should I just get VA to send five from each account?