Date: Wed, 3 Jun 1998 20:24:06 -0400 (EDT) From: Dima Dorfman <dima@zwb.net> To: rwmcfa1@sac.uky.edu (Ross McFarland) Cc: freebsd-questions@FreeBSD.ORG Subject: Re: how can you deny unknown/fake users when they try to send mail through a server (with pop3 clients) Message-ID: <199806040024.UAA08363@nwalme.pair.com> In-Reply-To: <Pine.HPP.3.92.980602225453.5722A-100000@sac.uky.edu> from Ross McFarland at "Jun 2, 98 11:06:46 pm"
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First, POP3 has _nothing_ to do with sendmail e-mail. It's a mail _retrieval_ protocol. Sending e-mail is SMTP's job, which is handled by sendmail. There are many good anti-spam resources at http://www.sendmail.org/. I also suggest you get sendmail 8.9.0 which adds many new anti-spam features. > > how can i deny unknown/fake users when they try to send mail through my > server? (with pop3 clients) > > I can fill in any made up name/account i want in my pop3 mail client's > userid and address and send it by way of my server to anywhere and > apparently it delievers it and says it's from > fake_user@www.my_domain_name.com or what ever even though fake_user > doesn't exist on my system. > > if possible, how can i set things up to only allow known/valid users to > send pop mail through my server? > > I'm running FreeBSD 2.2.6-RELEASE and qpopper-2.41b1 > > thanks in advance, > > rwmcfa1@sac.uky.edu > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > -- Dima Dorfman (dima@zwb.net) "640k ought to be enough for anybody." - Bill Gates, 1981 Micro$oft Sucks! FreeBSD Rules! http://www.freebsd.org/ Finger dima@zwb.net for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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