Hello compdoc lan_A is 192.168.178.0/24 lan_B is 190.100.3.0/24
Both lans are behind nat even if lan_b is not class C, we speak here from local networks without public ips (no DMZ). I use SMTP Proxy to catch spam and viruses and to forward emails after health treatment to mail MS Exchange Server, where they are distributed via Outlook and OWA users in both cities. So without SMTP Proxy I would put my AD Master Server in Internet with the public IP to catch emails, instead of Endian SMTP Proxy. This solution is for my high risky, that's way I put linux gateway on Endian with SMTP Proxy between my MSExch and Internet. I do this for 5 years, and always it was very safe, stable and cheap solution. The main question is, how I can forward email from LAN via VPN to another LAN. I've read somewhere that after processing the email through endian, it could be send only to some lan ip address. -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 15. Oktober 2008 15:26 An: efw-user@lists.sourceforge.net Betreff: Efw-user Digest, Vol 29, Issue 32 Send Efw-user mailing list submissions to efw-user@lists.sourceforge.net To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/efw-user or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Efw-user digest..." Today's Topics: 1. Re: SMTP Proxy Connection refused (compdoc) ---------------------------------------------------------------------- Message: 1 Date: Wed, 15 Oct 2008 07:27:14 -0600 From: "compdoc" <[EMAIL PROTECTED]> Subject: Re: [Efw-user] SMTP Proxy Connection refused To: <efw-user@lists.sourceforge.net> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii" When you say routed mode in your vpn, are you using the same ip address ranges in your two lans, or do they have different ranges? I guess my understanding of the smtp proxy is wrong. I thought it captured all smtp traffic going out in order to pass it thru the AV, etc. In your setup, I would disable the smtp proxy completely. But again, maybe my understanding of what the efw smtp proxy is capable of isn't complete... From: Rafal Sladek [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 14, 2008 4:34 AM To: efw-user@lists.sourceforge.net Subject: [Efw-user] SMTP Proxy Connection refused Hello, I am using two Endians 2.1.2 in two cities (let's give them name A and B), both location are connected via OpenVPN Net-to-Net. And there is one MS Exchange 2003 as a backend server in city B. The are two different networks, VPN is in routed mode (not in bridged) so the endians are responsible for routing between both LANs My problem applies to SMTP Forwarding via VPN. (SMTP Proxy + Exchange = Conection refused) In City A, Endian_A (it is the mx0 ) take incoming email traffic and forward direct to MS_Exch2k3_B in city B. In City B, Endian_B (it is the mx1 ) the Endian_B should take care about email forwarding to MS_Exch2k3_B, only in case when the mx0 in city A is offline. (It works) I've set at Endian_A (Proxy->SMTP->Domains) for my domain a local ip from MS_Exch2k3_B, important fact is that, Endian_A and MS_Exch_2k3_B are in different LANs. With the same setting on Endian_B works everything fine, but only in case when Endian_A is offline (the sequence of mx entries by domain provider is so defined, and change of this settings can not be treat as a solution) On the MS_Exch_2k3_B (Exchange->Global Settings-> Message Deliver ->General) I've added extra entry for Endian_A. In logs at Endian_A is following : postfix/smtp[3908]: 846A922DD2F: to=, relay=none, delay=0, status=deferred (connect to MS_Exch2k3_B(ip) :Connection refused)postfix/smtp[3908]: connect to MS_Exch2k3_B(ip) : Connection refused (port 25) On MS_Exch2k3_B is nothing to find in logs. Could someone write me why it doesn't work, and how to solve this problem? Thanks in advance Best regards Rafal Sladek -------------- next part -------------- An HTML attachment was scrubbed... ------------------------------ ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ------------------------------ _______________________________________________ Efw-user mailing list Efw-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/efw-user End of Efw-user Digest, Vol 29, Issue 32 **************************************** ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Efw-user mailing list Efw-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/efw-user
