Chào toàn thể AE thành viên VNAV Em mới cài Exchange Server 2003 để làm mail server, nhưng khi gởi test mail ra hotmail thi nó báo lỗi như sau: Your message did not reach some or all of the intended recipients. Subject: Test Sent: 5/21/2008 10:50 AM The following recipient(s) could not be reached: dungpc2002@hotmail.com on 5/21/2008 10:50 AM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <severmail.Ecosoft.com #5.5.0 smtp;550 DY-001 Mail rejected by Windows Live Hotmail for policy reasons. We generally do not accept email from dynamic IP's as they are not typically used to deliver unauthenticated SMTP e-mail to an Internet mail server. http://www.spamhaus.org maintains lists of dynamic and residential IP addresses. If you are not an email/network admin please contact your E-mail/Internet Service Provider for help. Email/network admins, please visit http://postmaster.live.com for email delivery information and support> - Còn gởi ra yahoo thì kô thấy nhận đc, trong jumbox cũng kô có luôn, nhưng vẫn nhận đc mail tư yahoo và hotmail. - Gởi ra Gmail thì ok va nhận cũng ok luôn. Kính các bác giúp đỡi em 1 chút. Thãn Các bác rất nhiều, xin hậu tạ sau..