From owner-freebsd-questions@FreeBSD.ORG Mon Oct 5 21:45:17 2009 Return-Path: Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 72B36106568B for ; Mon, 5 Oct 2009 21:45:17 +0000 (UTC) (envelope-from vogelke@hcst.com) Received: from beta.hcst.com (beta.hcst.com [192.52.183.241]) by mx1.freebsd.org (Postfix) with ESMTP id 1741A8FC1B for ; Mon, 5 Oct 2009 21:45:16 +0000 (UTC) Received: from beta.hcst.com (localhost [127.0.0.1]) by beta.hcst.com (8.13.8/8.13.8/Debian-3) with ESMTP id n95LjFA0010605 for ; Mon, 5 Oct 2009 17:45:15 -0400 Received: (from vogelke@localhost) by beta.hcst.com (8.13.8/8.13.8/Submit) id n95LjFKc010604; Mon, 5 Oct 2009 17:45:15 -0400 Received: by kev.msw.wpafb.af.mil (Postfix, from userid 32768) id 6850EBE59; Mon, 5 Oct 2009 17:38:14 -0400 (EDT) To: freebsd-questions@FreeBSD.ORG In-reply-to: <20091005135924.be749247.wmoran@potentialtech.com> (message from Bill Moran on Mon, 5 Oct 2009 13:59:24 -0400) Organization: Oasis Systems Inc. X-Disclaimer: I don't speak for the USAF or Oasis. X-GPG-ID: 1024D/711752A0 2006-06-27 Karl Vogel X-GPG-Fingerprint: 56EB 6DBF 4224 C953 F417 CC99 4C7C 7D46 7117 52A0 Message-Id: <20091005213816.6850EBE59@kev.msw.wpafb.af.mil> Date: Mon, 5 Oct 2009 17:38:14 -0400 (EDT) From: vogelke+unix@pobox.com (Karl Vogel) Cc: Subject: Re: way to check an email without sending it?? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: vogelke+unix@pobox.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Oct 2009 21:45:17 -0000 >> On Mon, 5 Oct 2009 13:59:24 -0400, >> Bill Moran said: B> Telnet to the service and start a SMTP transaction, but then abort it. B> If you don't get a rejection after the "rcpt to:" line, then you know B> the server will accept the mail and you can close the connection without B> completing the transaction. B> Note, that this is no guarantee. Some spam catching nonsense may accept B> the mail right up to end, then throw it away without delivering it. qmail will accept any valid address on the host, because the message might be forwarded or handled by a program. "Rcpt to:" always returns ok unless the address itself is mangled. The VRFY command is always answered like this to keep people from harvesting addresses: vrfy 252 send some mail, i'll try my best -- Karl Vogel I don't speak for the USAF or my company Sam: What's going on, Normie? Norm: My birthday, Sammy. Give me a beer, stick a candle in it, and I'll blow out my liver. --"Cheers"