My setup consist of 3 separate servers. Where the ports is no issue at all for me.
spam.domain.tld (192.168.46.1) which is ASSP only. mx1.domain.tld (192.168.46.2) which is Postfix running POP3 and IMAP mx2.domain.tld (192.168.46.3) which is Exchange 2007 When sending an email to us, spam.domain.tld receives the mail on port 25. It then forwards it to mx1.domain.tld if not spam. Mx1 will then do a LDAP lookup to our Active Directory and see if an exchange user is present, if so, a transport to mx2.domain.tld is return thereby forwarding the email to the exchange server instead of delivering it local at mx1.domain.tld. The exchange server (mx2.domain.tld) has a Send Connector to spam.domain.tld thereby using this as a SMTP server. To illustrate it, incoming mail would be: Internet -> spam.domain.tld -> mx1.domain.tld -> mx2.domain.tld Outgoing flow is: mx1.domain.tld -> spam.domain.tld -> Internet Or mx2.domain.tld -> spam.domain.tld -> Internet I hope this does describe the mailflow fully enough for you? > #< #5.4.4 X-Postfix; Host or domain name not found. Name service error > for name=assp.local type=A: Host not found> #SMTP# Postfix ? Could you please explain your setup ? I assume your ASSP is running on a separate box (from exchange) but please describe your mailflow; the correct one should be: * incoming Internet -> ASSP -> SMTP router -> Exchange * outgoing Exchange -> ASSP -> SMTP router -> Internet so, incoming email will hit port 25 on the ASSP box which will then proxy it to the SMTP "router" sitting on the same box on (e.g.) port 125; the latter will then route incoming emails to the exchange box for outgoing emails, the exchange will connect to the ASSP relay port (e.g. 225); ASSP will then proxy the outgoing message to the SMTP "router" (port 125 as above) which will in turn route the email to the destination MX Is the above your setup ? ---------------------------------------------------------------------------- -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Assp-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/assp-user ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Assp-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/assp-user
