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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.Hawaii.Edu!news.uoregon.edu!arclight.uoregon.edu!feed1.news.erols.com!howland.erols.net!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: HELP, REWARD!!! Sendmail and DNS! Date: 17 Nov 1996 08:45:25 GMT Organization: Private BSD site, Dresden Lines: 37 Message-ID: <56mjb5$b4a@uriah.heep.sax.de> References: <848099324.24875@dejanews.com> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E exuviae@intersurf.com wrote: > When i do an > nslookup of mail.trans-actions.com, you get mail.trans-actions.com > 206.124.201.2..great, but when you nslookup from another server > outside of our lan to the same machine you get nothing.. You're sounding totally confusing. Make sure that: . your nameserver is the delegated one, or the delegated one for your zone has data about your machine, or your nameserver mirrors the delegated server for your zone; . you have an entry in both, the forward (trans-actions.com), and the reverse (202.124.206.in-addr.arpa) zones; . you don't have other data for names that have CNAME records. Btw., it's a good idea to have mail.trans-actions.com being an MX-only entry, pointing to two or three different actual machines that are willing to handle mail for your domain. (Your example mentioned an A record for this name, which is IMHO a bad idea.) Also make sure your sendmail.cf is willing to accept things like mail.trans-actions.com or trans-actions.com as being directed to itself, or you'll get the sendmail error #1 (``Local configuration error: MX record for ... points back to myself.''). This is done via Cw statements, or in the file mentioned as Fw in /etc/sendmail.cf. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)