Thanks so much! _____ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jason Sherry Sent: Friday, March 16, 2007 9:25 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Connector The 2003 SMTP protocol is based on the SMTP service provided in Windows 2000 and higher. Exchange expands the functionality of the base OS SMTP service and moves all (except really specialized metabase changes that are normally only done when troubleshooting) administration into Exchange System Manager (ESM). The E2k3 SMTP service also support additional ESMTP commands, support for Intelligent Message Filtering (IMF), SenderID, RBLs, better filtering, better admin, more flexibility, and more. Incoming mail is controlled by your MX records. Routing cost will control which server sends the messages outbound, unless you have one configured to use the other as a smart host. By default outbound mail from 5.5 users will be sent out by the 5.5 server (due to routing cost). I don't recall for sure but think that if you don't configure a SMTP connector on the E2k3 server it will continue to send mail out though the 5.5 server. So once you get your directory prepared (ADC, etc) for E2k3 and setup your E2k3 server you need to setup an SMTP connector on it so it will send (This can be done with the Internet Mail Wizard). It's been awhile since I've done 5.5 work so my response might be subject to some rusted synaptics J Jason Sherry Messaging Architect, MCSE: M, Microsoft MVP From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Allen, Christine Sent: Thursday, March 15, 2007 2:51 PM To: 'exchangelist@xxxxxxxxxxxxx' Subject: [ExchangeList] Connector Hello, I have a 5.5 server that holds only are internet connector and a connector for our fax software. I have two questions. What is the difference between the versions of smtp protocol that 5.5 uses compared to 2003? What will happen if I run the internet mail wizard on the 2003 server? Will it take over both outgoing and incoming? Or since our MX is pointing to the 5.5 only outgoing. Thanks in advance. Christine Allen Systems Engineer Electric Insurance Company 75 Sam Fonzo Drive Beverly, MA 01915 phone: 978-524-5612 fax: 978.236.5612 christine.allen@xxxxxxxxxxxxxxxxxxxxx <http://www.electricinsurance.com> http://www.electricinsurance.com