Hi, I set the max send and receive size as 40MB. Now, internally send and receive is ok with 15MB attachment. inside -> outside, ok to send the attachment of 15MB but outside->inside, failed to send the attachment of 15MB. (the error from my yahoo, hotmail and gmail mailbox says: Message size exceeds fixed maximum message size) could anyone help me on this? thanks! ================================================ PS C:\Documents and Settings\Administrator> get-TransportConfig ClearCategories : True GenerateCopyOfDSNFor : {5.4.8, 5.4.6, 5.4.4, 5.2.4...} InternalSMTPServers : {0.0.0.0-255.255.255.255, 192.168.40.0/24, 192.168.30.0/24, 192.168.20.0/24...} JournalingReportNdrTo : <> MaxDumpsterSizePerStorageGroup : 180MB MaxDumpsterTime : 180.00:00:00 MaxReceiveSize : 40MB MaxRecipientEnvelopeLimit : 5000 MaxSendSize : 40MB TLSReceiveDomainSecureList : {} TLSSendDomainSecureList : {} VerifySecureSubmitEnabled : False VoicemailJournalingEnabled : True Xexch50Enabled : True

I guess you have not changed the limit on recieve connector take a look @ below artice http://exchangepedia.com/blog/2007/09/exchange-server-2007-setting-message-size.html Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

thanks, Vinod. but i think i had set it to 40MB MaxReceiveSize : 40MB

Run Get-Recieveconnector | fl and check of it reflects the 40mb? also take a look @ below Managing Message Size Limits http://technet.microsoft.com/en-us/library/bb124345.aspx How to Modify the Configuration of a Send Connector http://technet.microsoft.com/en-us/library/aa998836.aspx How to Modify the Configuration of a Receive Connector http://technet.microsoft.com/en-us/library/bb123477.aspx Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

thanks for your prompt response. I guess I get it. I will make some test.