Subject: How to reply?
To: None <netbsd-help@NetBSD.ORG>
From: Patrick Welche <prlw1@cam.ac.uk>
List: netbsd-help
Date: 02/04/1998 11:26:20 
To: john@Mcs.Net (Johnathan Raymond Sconiers II)

  john@Mcs.Net:
    SMTP error from remote mailer after RCPT TO:
    <john@mcs.net>:
    host mailbox.mcs.com [192.160.127.87]:
    550 <john@mcs.net>... User unknown

Hopefully you read netbsd-help, Johnathan.