Z00EJR01%AWIUNI11@pucc.princeton.edu ( Ewald Jenisch) (03/28/91)
I'm about to set up mailing in one of our sub-domains. What I want to end with is the following: Mail should be adressed to <user>@<domain>, instead of <user>@<host>. An example: User 'joe' works at machine 'ws1.edvz.univie.ac.at'. However this fact should be hidden from the outside world; i.e. somewone should be able to address mail to "joe@edvz.univie.ac.at" or even "joe@univie.ac.at". Naturally mail should finally arrive at 'joe' on his machine 'ws1.edvz.univie.ac.at". When joe replies to the mail it should appear to the recipient as if it came from "joe@edvz.univie.ac.at" not "joe@ws1.edvz.univie.ac.at". I've seen numerous examples of such mail-addresses in the past. Does anybody out there have an idea how to get that working? Are modifications necessary in the nameserver (MX-records)? Or should changes be done to the senmail-config? This all should work under SunOS 4.1.1. Thanks in advance for any help, Ewald JENISCH NIC-Handle: EJ51 University Computer Center; University of Vienna, Austria E-Mail: z00ejr01@awiuni11.bitnet or z00ejr01@helios.edvz.univie.ac.at Snail-Mail: Universitaetsstrasse 7; A-1010 Vienna, Austria, Europe
jik@athena.mit.edu (Jonathan I. Kamens) (04/04/91)
In article <26387@adm.brl.mil>, Z00EJR01%AWIUNI11@pucc.princeton.edu ( Ewald Jenisch) writes: |> [asks how to hide subdomains in sender addresses] It seems to me that the easiest way to do what you're trying to accomplish is to do a bit of address rewriting in ruleset 1, which is applied to all sender addresses, so that individual machines are hidden. Using ease notation, you would so something like this (leaving out many of the details): field username, hostname : match (1); macro hiddenhost = "univie.ac.at"; bind SENDER_PREWRITE = ruleset 1; ruleset SENDER_PREWRITE { if ( username < @ hostname . $hiddenhost > ) retry ( $1 < @ $hiddenhost > ); if ( username < @ hostname . hostname . $hiddenhost > ) retry ( $1 < @ hiddenhost > ); } This hides machines up to two levels deep in the domain. Now, you might not want to be this general -- you might want to define a class of hostnames that you want to hide, and only match against those hosts when deciding whether or not to hide. It should be relatively straightforward. By the way, if you don't have ease, then you should get it :-). I believe it was posted in comp.sources.misc recently, and it takes much of the stress out of sendmail config files. -- Jonathan Kamens USnail: MIT Project Athena 11 Ashford Terrace jik@Athena.MIT.EDU Allston, MA 02134 Office: 617-253-8085 Home: 617-782-0710