From owner-freebsd-questions Wed Oct 30 20:47:51 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 984F037B401 for ; Wed, 30 Oct 2002 20:47:49 -0800 (PST) Received: from mail.gbronline.com (mail.gbronline.com [12.145.226.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id DFC0243E7B for ; Wed, 30 Oct 2002 20:47:48 -0800 (PST) (envelope-from daleco@daleco.biz) Received: from DaleCoportable [12.145.236.218] by mail.gbronline.com (SMTPD32-7.13) id A584EFF800C0; Wed, 30 Oct 2002 22:45:56 -0600 Message-ID: <004a01c28098$97a480c0$fa00a8c0@DaleCoportable> From: "DaleCo Help Desk" To: "Steve Warwick" , References: Subject: Re: Sendmail: non-relay & secure Date: Wed, 30 Oct 2002 22:47:17 -0600 Organization: DaleCo, S.P.---"the solutions people" MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG From: "Steve Warwick" To: Sent: Wednesday, October 30, 2002 10:19 PM Subject: Sendmail: non-relay & secure > Hi, > > I have sendmail / qpopper running on a production machine and have yet to > figure out a way to open mail up to my client sin a secure way. > > Eg. Client logs in from aol.com to check and send mail. > > Is there a way to do this that will not open my machine up to abuse? > > > TIA > > > Steve Seems like a standard way to do this is something like "POP before SMTP." If a certain IP authorizes on POP, it's marked as a relay for xx minutes. I'm not sure how this is accomplished, or how secure it's considered, but it's been done, and I've seen it advised here to someone in a similar situation. You might look around for it... HTH, Kevin Kinsey DaleCo, S.P. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message