Date: Tue, 20 Feb 2001 16:18:30 -0500 From: Bob Johnson <bob@eng.ufl.edu> To: operador@nietzsche.webcaribe.net Cc: sendmail+rickert@Sendmail.ORG, questions@freebsd.org Subject: Re: error Message-ID: <3A92DF26.B4A6AC65@eng.ufl.edu>
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The FreeBSD mailing lists (hub.freebsd.org) do not accept mail from systems for which a reverse dns lookup fails. This policy greatly reduces the amount of commercial spam on the mailing list. As Neil Rickert pointed out, the easiest solution is generally to relay the mail through the appropriate ISP's SMTP host by specifying it as the SMTP "Smarter Host" in the sendmail configuration. For most people this is not a problem once they understand what they need to do (although it used to aggravate me because I used to use several ISPs and had to change the sendmail config every time I changed ISPs). In this particular case, it appears to be a misconfigured nameserver, because there are all kinds of names mapped to 209.88.252.106, but looking up that IP number doesn't return a name. You need to configure your nameserver to provide the proper reverse lookup (or you need to talk to your ISP and get their nameserver and your nameserver cooperating with each other). - Bob > > ------------------------------ > > Date: Tue, 20 Feb 2001 10:44:22 -0600 > From: Neil W Rickert <sendmail+rickert@Sendmail.ORG> > Subject: Re: error > > Operador del sistema <operador@nietzsche.webcaribe.net> wrote: > > >Hi, I would like to know if it's a problem of my server > >(nietzsche.webcaribe.net) and how can i solve?.. > >This topic is not sendmail related, but, well, i can become in a problem > >for the mail users... > > Obviously, your sendmail server is managing to send us email. > > If freebsd.org has a problem with accepting mail from your system, > then you will have to ask them to explain. I am puzzled that a > support group would make their support line inaccessible to people > who need support. > > You can perhaps get around the problem by using your ISP server as a > SMART_HOST . Of course, this may not help if your ISP server does > not have reverse DNS properly set up. > > >thanks alot, > > >----- > >WebCaribe: La presencia Web de la costa caribe > >Departamento de sistemas > >Calle 81 # 67 - 36 L2 - Barranquilla - Colombia > >Tel: 57-5-3789671/3789167 - http://www.webcaribe.net > > >On Tue, 20 Feb 2001, Neil W Rickert wrote: > > >> Operador del sistema <operador@nietzsche.webcaribe.net> wrote: > > >> >hi, why i recive this: > >> >Feb 20 11:02:36 nietzsche > >> >sendmail[73312]: WAA69948: to=<freebsd-questions@freebsd.org>, > >> >ctladdr=<operador@nietzsche.webcaribe.net> (1001/0), delay=4+12:41:01, > >> >xdelay=00:00:09, mailer=esmtp, relay=hub.freebsd.org. [216.136.204.18], > >> >stat=Deferred: 450 Client host rejected: cannot find your hostname, > >> >[209.88.252.106] > > >> That appears to be a message from hub.freebsd.org. Presumably they > >> are refusing your mail because the reverse dns lookup of > >> 209.88.252.106 fails. > > >> You would have to ask them why they are being so restrictive (if you > >> can manage to get through to them). > > >> -NWR > > > > > -NWR > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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