Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!columbia!rutgers!clyde!cbatt!ukma!david From: david@ukma.ms.uky.csnet (David Herron, NPR Lover) Newsgroups: comp.mail.headers Subject: Re: Another reason to hate smail Message-ID: <5484@ukma.ms.uky.csnet> Date: Sat, 10-Jan-87 12:15:39 EST Article-I.D.: ukma.5484 Posted: Sat Jan 10 12:15:39 1987 Date-Received: Tue, 13-Jan-87 06:57:05 EST References: <14239@amdcad.UUCP> Sender: root@ukma.ms.uky.csnet Reply-To: david@ukma.ms.uky.csnet (David Herron, NPR Lover) Organization: U of Kentucky, Mathematical Sciences Lines: 30 In article <14239@amdcad.UUCP> phil@amdcad.UUCP (Phil Ngai) writes: >... Now I am phil@amdcad.amd.com, which decwrl thinks is an Internet >site. Decwrl looks us up and discovers that sun is the approved >gateway to us and ships my mail to sun which finally sends it to me. The first thing is I see in the current map that the d.* files lists a gateway for .amd.com ... so far so good. Now, when decwrl gets your message it has two choices of how to route your message ... one is the MX record which sun is maintaining for you (which causes the routing over the internet), and the other is the uucp route. It's possible their sendmail configuration does not allow them to take those two choices into consideration. It's also arguable that relaying mail over the Internet is more reliable (in the general case) than relaying over a UUCP route. For what cases does it make sense to prefer the MX record over the UUCP route (or vice versa)? In MMDF the decision is wired into the tailoring file depending on which channel I mention first. (If I mention the SMTP channel first (and *if* we were on the Internet) then the MX record would take precedence ... that is barring the authorization stuff from saying no-no to a route over the Internet). -- David Herron, cbosgd!ukma!david, david@UKMA.BITNET, david@ms.uky.csnet (I'm also "postmaster", "news", "netnews", "uucp", "mmdf", and ...) "Don't put your money in South Africa -- Give it to me!" -- Cerebus