Sorry for the newbie question. I'm new to Exchange server 2k7 and having to use an internal domain name that is diff. than the external one. We have a single e2k7 server with hub, client, and mailbox roles, and forefront secirty for exchange server. I have the server sending external mail correctly for our users' external e-mail addresses. However, there is a problem with the info in the e-mail headers for outgoing mail. I have highlighted a few lines in the header info(that came from the e-mail sent to a gmail account from an interanal user's account) below. I'm not sure how to get the e2k7 server to not use the mail1.mycompany.lan (internal mailserver ip address) in the header of outgoing mail. Is it even possible to make the server use mail1.mycompany.com (external ip of mailserver)? Reverse DNS is setup correctly. It points to mail1.mycompany.com and the servers exteranl ip address(this can be seen in the header info below in the first received tag). Any suggestions would be appreciated. Thanks. Delivered-To: user2@gmail.com Received: by 10.114.25.20 with SMTP id 20cs75230way; Thu, 8 Feb 2007 15:22:28 -0800 (PST) Received: by 10.67.99.1 with SMTP id b1mr4654551ugm.1170976948095; Thu, 08 Feb 2007 15:22:28 -0800 (PST) Return-Path: <user1@mycompany.com> Received: from mail1.mycompany.com ([207.155.3.2]) by mx.google.com with ESMTP id o53si13260483nfa.2007.02.08.15.22.25; Thu, 08 Feb 2007 15:22:28 -0800 (PST) Received-SPF: unknown (google.com: domain of user1@mycompany.com uses a mechanism not recognized by this client) Received: from mail1.mycompany.lan ([192.168.2.2]) by mail1.mycompany.lan ([192.168.2.2]) with mapi; Thu, 8 Feb 2007 17:13:30 -0600 From: john doe <user1@mycompany.com> To: "'user2@gmail.com'" <user2@gmail.com> Date: Thu, 8 Feb 2007 17:13:29 -0600 Subject: test8 Thread-Topic: test8 Thread-Index: AcdL1/yt/SbPvrvyRwu8Zki9x2dM8Q== Message-ID: <045ED8C0ED50BF498076E5A98CAA9250685728C8@mail1.mycompany.lan> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_045ED8C0ED50BF498076E5A98CAA9250685728C8mail1mycompanyl_" MIME-Version: 1.0 --_000_045ED8C0ED50BF498076E5A98CAA9250685728C8mail1mycompanyl_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Iforgot to mention. I have one send connector setup. Since we are using a single server for exchange, will setting up a second send connector and designating it as internal take care of this?

Hey, i am experiencing the same thing. Did you ever get an answer to this? thanks, dean

I have the same problem... Yahoo and Hotmail is accepting as spam... do you have the same problem?