Here is the thing; i can receive email from many sources with attachment over 5mb; but when it comes to anything over 10mb it won't come in. Strange enough they don't get an error or denial of the attachment being to big. by default my external mail server is set to recieve any size attachment; sys mgr doesn't show me that it is being recieve believe to be having some problems with spam/symantec (bm_rules) needs to be deleted; but should that be a cause of concern; hindering an attachment without any notification on either end no event log error no spam error about a message of that any help would be appreciated..

There are a number of places where the message size limits can be set in Exchange. Here's a good article explaining where you can find them: http://technet.microsoft.com/en-us/library/bb124345(EXCHG.80).aspx Alexei

Hi Eddavis97, You can also enable the Protocol Logging on the Receive Connector to check the connection. How to Configure Protocol Logging http://technet.microsoft.com/en-us/library/bb124531(EXCHG.80).aspxFrank Wang

Hi Eddavis97, Any updates on your issue?Frank Wang