A user sends 200 email addresses from her distribution list. All users outside the firewall can open the her email, but users within the same building, including herself can not open the email. That is from her inbox or sent box, can’t delete the email either. But, she can send 75 email addresses from her distribution list, everyone within the building can open the email. Is there a limit on sending emails from the distribution list of email addresses. if so,please provide solution. I have tried to use service pack 2. it didn’t resolve the problem…