The Linux box is what the External MX only points to and it is a external to internal (inbound only) gateway that does AV and spam scanning on incoming messages send to us from the outside only. Once it has scanned those messages it passes the messages on to the exchange 2000 server currently (I know I'll need to change this soon as I solve this problem and move about half our incoming volume to the 2003 server).
Each of the exchange servers have only NIC in them and they are IP'd on the internal network one IP different from each other and can communicate at a IP level without issue. The Linux box just happens to be one IP lower then the exchange 2000 Server (opposite side of the exchange 2003) and is not involved in any way between anthing going between them or for scanning going out. I don't have anything set from a restriction standpoint on either server. -----Original Message----- From: "Wells, James Arthur" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[email protected]> Date: Friday, May 11, 2007 8:13 am Subject: RE: Migration (2000->2003) issue. I can't remember if you mentioned...but is mail routing through the Linux box for either of the two mailbox servers outbound delivery? Or are there security restrictions for SMTP delivery on the Exch 2000 server? --James -----Original Message----- From: "Fred Skrotzki" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[email protected]> Sent: 5/11/07 5:52 AM Subject: RE: Migration (2000->2003) issue. Ok our firewall is doing the NAT for each box (Pix 515e). Each box has a Single NIC with a Single assigned IP that is a internal Private IP (172.18.0.x). -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ed Crowley [MVP] Sent: Friday, May 11, 2007 1:22 AM To: Exchange Discussions Subject: RE: Migration (2000->2003) issue. I recommend using one NIC. While I'm not sure that's your problem, enough people post with their multihoming problems to make me believe it is until otherwise proven. Couldn't your NAT work just as well with an internal NIC as an external one? Ed Crowley MCSE+Internet MVP Time Magazine's Person of the Year! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fred Skrotzki Sent: Thursday, May 10, 2007 6:12 PM To: Exchange Discussions Subject: RE: Migration (2000->2003) issue. What do you recommend? I need to get the 2003 server to send mail back to the 2000 server without getting a NDR. (The other way works) which is great. I just need this to somehow work until I can get all users moved (This process is scheduled to take 5 days due to peoples work schedules and access). After that we are dumping the 2000 server. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ed Crowley [MVP] Sent: Thursday, May 10, 2007 6:55 PM To: Exchange Discussions Subject: RE: Migration (2000->2003) issue. Yikes! In general, multihoming Exchange servers results in unpredictable routing issues like you're seeing. I recommend that you dump that configuration. Ed Crowley MCSE+Internet MVP Time Magazine's Person of the Year! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fred Skrotzki Sent: Thursday, May 10, 2007 3:29 PM To: Exchange Discussions Subject: RE: Migration (2000->2003) issue. Yes both servers are in the Same Exchange Organization and administrative group. Neither server has a Smart host defined. Both servers are on the same subnet (2 ip's right next to each other and can see each other). Each has a dedicated external IP assigned in the firewall so they can send directly out with valid reverse records defined. In advanced delivery the only fields defined are: Masquerade domain: Example.com, (Really our base domain and FQDN on 2000 is msmail.example.com and 2003 is defined as mail1.example.com. We do NOT have a SMTP connector created using any smart host. We are in total DNS control of our IP space so don't need to use smart (Also have BIG fat pipe). -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ed Crowley [MVP] Sent: Thursday, May 10, 2007 4:39 PM To: Exchange Discussions Subject: RE: Migration (2000->2003) issue. Please confirm that both servers are in the same Exchange organization and administrative group or not. Have you configured the "smart host" field in the SMTP virtual servers' properties on either server? If so, create an SMTP Connector, configure smart hosting there, and clear that field on all virtual servers. Ed Crowley MCSE+Internet MVP Time Magazine's Person of the Year! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fred Skrotzki Sent: Thursday, May 10, 2007 11:55 AM To: Exchange Discussions Subject: Migration (2000->2003) issue. Ok I'm missing something simple here.. Here is the layout. Mail come in to a Linux server that does some filtering for spam, etc. Then takes valid e-mail and forwards to a exchange 2000 server. This server is built on a POC whitebox from old admin (called msmail) that we can't upgrade. I've deployed a new Exchange 2003 server (called mail1) into the domain and moved 3 test mailboxes using the exchange move mailbox exchange option in users and computers. Anybody external and/or internal can send to the three moved mailboxes and they get the mail. The moved mail boxes can send mail to anybody EXCEPT those on the old server. We get NDR's. Each users e-mail addresses are set to [EMAIL PROTECTED] as the default SMTP and [EMAIL PROTECTED] as a secondary smtp so mail from the Linux box get's accepted. It will take me about a week to move each user with there permission from one s _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
