I am havinga very weird issue withou Exchange Sever that just started today. No one in the company is able to receive attchments. I have the attchment limit size set 10 MB, but even a 1 MB file won't go through. Your help would be greatly appricated. Here is the error message the sender receives. Delivery has failed to these recipients or distribution lists: admin@pennauto.usThis message exceeds the maximum message size allowed. Microsoft Exchange will not try to redeliver this message for you. Please make the message smaller -- by removing attachments, for example -- and try sending it again, or provide the following diagnostic text to your system administrator. Sent by Microsoft Exchange Server 2007 Diagnostic information for administrators: Generating server: pennauto.secure admin@pennauto.us#550 5.2.3 RESOLVER.RST.SendSizeLimit; message too large for this sender ## Original message headers: Received: from snt0-omc3-s35.snt0.hotmail.com (65.55.90.174) by CYPHER.pennauto.secure (172.28.4.14) with Microsoft SMTP Server id 8.2.176.0; Tue, 24 Nov 2009 11:22:45 -0500 Received: from SNT106-W33 ([65.55.90.137]) by snt0-omc3-s35.snt0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 24 Nov 2009 08:25:59 -0800 Message-ID: <SNT106-W33214C355B70372FC65915D29D0@phx.gbl> Return-Path: jordanfeld@msn.com Content-Type: multipart/mixed; boundary="_e4d932c5-7024-4af7-9520-b80885590930_" X-Originating-IP: [75.149.14.201] From: Jordan Feldman <jordanfeld@msn.com> To: <admin@pennauto.us> Subject: Date: Tue, 24 Nov 2009 11:25:59 -0500 Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 24 Nov 2009 16:25:59.0782 (UTC) FILETIME=[CEB5D860:01CA6D22]

Can you check the values Have a look at the following Technet article on managing message size limits. http://technet.microsoft.com/en-us/library/bb124345.aspx I believe that you will need to modify the values in Active Directory, on the Transport Config, and on the Receive/Send Connectors.Also check this:Managing Message Size Limits http://technet.microsoft.com/en-us/library/bb124345.aspx How to Modify the Configuration of a Send Connectorhttp://technet.microsoft.com/en-us/library/aa998836.aspx How to Modify the Configuration of a Receive Connectorhttp://technet.microsoft.com/en-us/library/bb123477.aspxRaj

Yes, please check your limit settings at Org/connector/server levels.Just for supplement, a nice blog article written by our MVP Amit Tank:http://exchangeshare.wordpress.com/2008/04/24/exchange-2007-where-to-set-message-mail-size-limit/thanks,Elvis