I have a friend who sends out inservice information for about 50,000 teachers a couple times a week. I have set up a php page to check a database to find any unsent emails that he may has created and sends them to each of the teachers. He sends these out 2 to 3 times a week. I have been told that if you run this page from your computer, that emails are then marked as “spam” because of all of the emails being sent from that ip so I set up a Cron Job to run this page. Are there any problems with this? If so, what can I do about it?