Mail Delivery Subsystem Error Just recently I have been getting the following emails... MailEnable: Message delivery has been delayed. Message is waiting at domain.com for delivery to 22.214.171.124. Reason: Mail Server for bounce.offorumail.com could not accept your email at this time. MailEnable will keep trying to deliver this message and will notify you of any progress. Message headers follow: From: "Postmaster" <Postmaster> To: <4G8xve2CUH50X6iSGP7pgpIxkxvz5vM3P9x2a@bounce.offorumail.com> Subject: Delivery Failure Date: Fri, 15 Oct 2004 02:39:23 -0500 Message-ID: <B4254018B97A42B692B1568C2F578.MAI@domain.com> Precedence: bulk Why is this happening. I have read a little bit and some suggest that it is the firewall, but I don't have it enabled. Also my relay is closed and the server has port 53 ( DNS ) open. Could someone please help me out with this problem.