Hi, I have two exchange Hub trasport. I'm not using an Edge transport role. the process EdgeTransport.exe is consumming 50% UC and the message flow become very slow. what is the EdgeTransport process? How can I reduce his UC consuming? regards

As you said, you have two HUB servers, MBX servers will do the round robin on its own.This really sound strange but this absolutely normal.EdgeTransport.exe and MSExchangeTransport.exe are the executable files that are used by theExchange Transport service. This service runs on every HUB Transport server or Edge Transport server.http://technet.microsoft.com/en-us/library/bb232166.aspxhttp://www.tech-archive.net/Archive/Exchange/microsoft.public.exchange.admin/2008-05/msg01569.htmlRaj

Any anti-virus or other 3rd party software installed on the server?When did this start?Errors in the event logs?Have you run ExBpa against the server?

yes. I have "Symantec Mail Security for Exchange" and "Symantec End Point Protection" installed on the server. No I haven't run ExBpa on the server

Run Exbpa and also try to disable the SEP just for a while and see if that does any change.Raj

I disable SEP and SMS. I have few free space disk on one of the hub server( 500 Mo). Yesterday, I had 3 Go free space. How does this happen? How can I free the queue on the server?

Check for the folder's size and see if any of teh folders have grown unexpected. specially check for the exchange folders and sub folders and see if there is some thing fishy going over there. Check for the hidden folders also.Raj

I think that the probleme is caused by open relaying. the exchange server is trying to transmet a lot of messages. I have many queues in my server. and the queues are full. How can I correct this?

By default exchange 2007 is closed for relay. In case you wnatto check this http://exchangedeepthoughts.blogspot.com/2007/12/testing-mail-server-via-telnet.htmlCheck for spam and corrospoding NDR's that are getting generated.Raj

Hi,Please check stage 4 and stage 5 in the following article:Understanding Back Pressurehttp://technet.microsoft.com/en-us/library/bb201658.aspx Regards,Xiu

what the solution???

I disable SEP and SMS.I have few free space disk on one of the hub server( 500 Mo). Yesterday, I had 3 Go free space. How does this happen? How can I free the queue on the server? Hi there,With the advent of SP1+ backpressure for storage space went down to 500mb (from 4GB@RTM).Can I suggest you also check the following TechNet articles to ensure you have sized your Hub Transport Servers correctly."Transport Server Storage Design" http://technet.microsoft.com/en-us/library/bb738141.aspx"Planning Memory Configurations" http://technet.microsoft.com/en-us/library/bb738124.aspx"Planning Processor Configurations" http://technet.microsoft.com/en-us/library/aa998874.aspxOliver

what the solution??? Have you tested your Server for Open Relay?As discussed Exchange is disabled for this by default. Here's an article describing how to enable relaying for Exchange 2007.http://msexchangeteam.com/archive/2006/12/28/432013.aspxAdding any domains as 'external relay' would also set your Exchange Org to accept mail for these and then forward them on (via a Send Connector or DNS).Oliver

It was necessary to stop the transport service and to delete the queue. I have installed a relay SMTP to protect my domain.