Hi guys, I'm new of Exchange server. I have a simple question.all of our client are using MS Office Outlook 2007 or 2003. there is no need to config client with POP and SMTP.since no need to config SMTP, can i stop this service on Exchange 2003? sorry, it maybe stupid question.Thanks, D

No you can't, the SMTP service is also used to send mail outbound from your Exchange environment. I would leave this service running. Mark Morowczynski|MCT| MCSE 2003:Messaging, Security|MCITP:ES, SA,EA|MCTS:Windows Mobile Admin|Security+|http://almostdailytech.com

Hi,SMTP is very important, Never disable SMTP service. Below link provide you some details information on SMTP serivceshttp://technet.microsoft.com/en-us/library/aa996068(EXCHG.65).aspxRegards,Krishnahttp://smtpport25.wordpress.com/

SMTP is the protocol or media which your exchange uses to talk to foreign messaging servers over internet. If you stop that service then your server will not be able to contact other servers to send /fetch emails over internet. and may impact your business So as others said do not stop this service. Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

No.The SMTP service runs in the Inetinfo process and when extended through Exchange event sinks, processes all inbound and outbound messages. When messages pass through the transport subsystem, SMTP makes heavy use of Internet Information Services (IIS) resources. You must understand the SMTP service design to understand how the entire Exchange2003 transport subsystem works.SMTP Transport Architecturehttp://technet.microsoft.com/en-us/library/bb123644(EXCHG.65).aspxRegards,Xiu