gianpaolo racca wrote: > > On Saturday 01 June 2002 19:58, J. Craig Woods wrote: > > WRONG AGAIN! The mail server, smtp.mandrax.org is not, repeat *NOT*, > > doing a reverse dns lookup on ip addresses (please see my *many* posts > > on this issue). > > So what's the meaning of this message? > > <[EMAIL PROTECTED]>: host smtp.mandrax.org[63.209.80.243] said: 450 > Client host rejected: cannot find your hostname, [111.222.333.444] > > my public IP has obviously been hidden
Good thing you hid that ip address. I had to move my eyeballs all the way up to the headers to see it :-) What smtp.mandrax.org is doing is a *FORWARD* lookup. In essence, it ran a "nslookup your-hostname.domain", and this is what it got: [drjung@sherman drjung]$ nslookup simpson.preciso.net Note: nslookup is deprecated and may be removed from future releases. Consider using the `dig' or `host' programs instead. Run nslookup with the `-sil[ent]' option to prevent this message from appearing. Server: 192.168.0.6 Address: 192.168.0.6#53 ** server can't find simpson.preciso.net: NXDOMAIN You see, you do not exist, so mandrax, rightly so, is not allowing mail from you. You do not exist when I look you up on a dns server that is out on the internet too: [drjung@sherman drjung]$ nslookup -sil simpson.preciso.net 4.2.2.1 Server: 4.2.2.1 Address: 4.2.2.1#53 ** server can't find simpson.preciso.net: NXDOMAIN If you want to send mail to smtp.mandrax.org, you must first make sure you register your domain name, and you must then have that name in the address space of a dns server running on the internet (just ask Pierre about this...grin). Some public dns server needs to "point" to your hostname. I might be best to read up on domains, hostnames, and dns records. Good luck, drjung -- J. Craig Woods UNIX/NT Network/System Administration http://www.trismegistus.net/resume.html Character is built upon the debris of despair --Emerson
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