From owner-freebsd-isp Mon Jun 14 2:34: 0 1999 Delivered-To: freebsd-isp@freebsd.org Received: from sinope.eclipse.net.uk (sinope.eclipse.net.uk [195.188.32.121]) by hub.freebsd.org (Postfix) with ESMTP id 1B1E614D70 for ; Mon, 14 Jun 1999 02:33:56 -0700 (PDT) (envelope-from stuart@eclipse.net.uk) Received: from eclipse.net.uk (elara.eclipse.net.uk [195.188.32.31]) by sinope.eclipse.net.uk (8.9.3/8.9.3) with ESMTP id KAA25624; Mon, 14 Jun 1999 10:33:30 +0100 Message-ID: <3764CC92.445CD437@eclipse.net.uk> Date: Mon, 14 Jun 1999 10:34:10 +0100 From: Stuart Henderson Organization: Eclipse Networking Ltd. X-Mailer: Mozilla 4.6 [en] (WinNT; U) X-Accept-Language: en-GB MIME-Version: 1.0 To: Khetan Gajjar Cc: Gary Palmer , freebsd-isp@FreeBSD.ORG Subject: Re: Sendmail References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > >POP Before SMTP, Authenticated SMTP and limiting access to your own > >netblocks are the only ``secure'' methods of denying > >relaying. Unfortunately, authenticated SMTP (by far the best solution) > >isn't all that widespread yet, and I don't know any freeware programs > >that come with AuthSMTP built in. Sendmail doesn't have it yet, > >although Eric says it will be in the next rev (I believe) > > Is it likely that you will ever see something like this built-in ? > I ask because there are so many different POP3 servers Doesn't matter - AuthSMTP is not the same thing as POP before SMTP. AuthSMTP is where you authenticate directly to the SMTP server rather than popping first and requires support from the mail client. I think Netscape and Outlook do this but it's still not too widespread. Another alternative is to check for a 'password' in the HELO which in many cases is easier to set (for example on Windows you would just put it into the domain name box in tcp/ip dns config). To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message