Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site hou3c.UUCP Path: utzoo!watmath!clyde!burl!hou3c!cak@Purdue.ARPA From: cak@Purdue.ARPA (Christopher A Kent) Newsgroups: net.mail.headers Subject: Re: What are SMTP commands "EXPN" and "VRFY" good for? Message-ID: <8409202127.AA13887@merlin.ARPA> Date: Thu, 20-Sep-84 17:27:00 EDT Article-I.D.: hou3c.849 Posted: Thu Sep 20 17:27:00 1984 Date-Received: Thu, 4-Oct-84 03:22:35 EDT Sender: ka@hou3c.UUCP (Kenneth Almquist) Lines: 20 To: William G. MartinCc: wmartin@ALMSA-1.ARPA, header-people@MIT-MC.ARPA In-Reply-To: Your message of Tue 18 Sep 84 08:31:39-MDT. <8409181438.AA07422> From: William G. Martin Subject: Re: What are SMTP commands "EXPN" and "VRFY" good for? The recent discussion of the EXPN and VRFY commands included a couple mentions of using EXPN to implement a command that would let a user discover who is on a remote mailing list. I had never heard of such a command before, but, now that I know it is possible, I want it! My implementation of the finger protocol for Unix has this feature; if you finger a mailing list on a remote site, the server will expand it and finger all the individual members (recursively following lists, of course). As a separate issure, I'd like to see this kind of behaviour more formally described with a new finger protocol spec (there are a number of problems with the current one). Anyone interested in collaborating? chris ----------