When a user is sending an e-mail to a particular(external) contact, they are receiving the following message inreturn:The following recipient(s) cannot be reached:person@domain.com on 9/26/2008 9:57 AM You do not have permission to send to this recipient. For assistance, contact your system administrator. <mailserver.com #5.7.1 smtp;554 5.7.1 Filter Rule 16 - Global REJECT Filter Macro 10984>Has anybody seen this before?

Hello, You may want to post this in our Exchange forum. People there have better knowledge on Exchange-related questions and they may help you to efficiently resolve the problem. They may also share some useful information with you. http://forums.microsoft.com/TechNet/default.aspx?ForumGroupID=235&SiteID=17 Thank you for your cooperation and I hope this will be resolved soon. Best regards,Chang Yin