Hi, I am developing a "tell-a-friend" application for one of my customers. We are going to have it all located on their server, and want to make sure we take the right decisions on the road so that we don't spam mark our server and don't end up in the SPAM inbox of the recipients. This is how I have prepared it all: 1. We have setup an email that do have an inbox and is REAL. We have an mailbox connected to it and can send and read emails from it via webmail and pop 2. We have an SMTP server that requires authentication 3. We are going to use PHP Mailer Using PHP Mailer and the SMTP sending function should make the emails look pretty real, am I right? On that we make sure that the HTML that we create is good, check that with http://spamcheck.sitesell.com <http://spamcheck.sitesell.com/> or similar. Shouldn't I be pretty good to go? We are not talking about millions of emails per day here, maybe a few thousands. What are the risks of ending up being a spam marked ip? Best regards, Peter Lauri www.lauri.se <http://www.lauri.se/> - personal web site www.dwsasia.com <http://www.dwsasia.com/> - company web site