Hi, We are experiencing a big problem when sending mass emails. We are sending 500 e mails daily and we noticed that after the 1st 100 e mails all the rest of e mails are returning to sender. We do not exceed the max ammount of 200 e-mails per sent mass email. Please we need urgent support with his issues, as we are in the middle of an important marketing campaing. Looking forward to any sugestions you may have. Thanks Carmen