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Subject: RE: PROBEM WITH MY MAIL

T. Bradley Dean (145p/+0r) Posted: Tuesday 20 Feb 2001
This post: 40 views, +0 rating

Len,

>2. Also restrict zone transfer on your DNS so you won't get spoofed.

I've never heard of DNS spoofing before, can you explain? If this is just people replicating my DNS servers, why is that a bad thing? And why would anyone want to do that?

I hate announcing things like this on the list...

T. Bradley Dean (800) 793-8171 Ext. 336 Bradley.Dean@InfoDish.com

-----Original Message----- From: IMail_Forum-owner@list.ipswitch.com [mailto:IMail_Forum-owner@list.ipswitch.com]On Behalf Of Len Conrad Sent: Tuesday, February 20, 2001 10:36 PM To: IMail_Forum@list.ipswitch.com Subject: Re: [IMail Forum] PROBEM WITH MY MAIL

AndrÃ© darling, I just adore the heart and arrow. smacks!! :)))

>ok guys here is a challenge i've allready lost 35 customers so i >hope you can help me out there >I have my own dns server this is also my mail and webserver >so it is all in one (dns, web, mail, ftp) my OS is windows 2000 >advanced server.. >now here is the problem i am tired of messing with the Imail so ill >leve it up to you guys.. >my primary domain is cdnet.com.mx (i am hosting multiple) but if >you send a mail to user@cdnet.com.mx it does not arrive

no MX for cdnet.com.mx, and no A for cdnet.com.mx.

>but if you send it to user@dns.cdnet.com.mx it arrives fine.

there is an A record for that one, so the sending MTA's have an ip on which to try to dump your mail:

# dig dns.cdnet.com.mx a

; <<>> DiG 8.3 <<>> dns.cdnet.com.mx a ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1 ;; QUERY SECTION: ;; dns.cdnet.com.mx, type = A, class = IN

;; ANSWER SECTION: dns.cdnet.com.mx. 22h39m50s IN A 200.38.239.130

>. now i dont know what it is i have added the domain cdnet.com.mx >and dns.cdnet.com.mx with same users and all maybe that would work >but nope same problem..

you haven't added enough, yet.

>i have pcanywhere installed on my server I am willing to give a one >year hosting of a domain and website if anyone can fix this problem for me. > >it is EXTREMELY URGENT i am awake 24 hrs with this problem.. please help

1. As I pointed out in the other msg replying to Phil's "you've got no MX", you also don't have an A record for cdnet.com.mx, and that's what's killing your delivery, after the sender MTA's cant' find your MX.

so, add an MX record, and A record, and you'll be ok.

2. Also restrict zone transfer on your DNS so you won't get spoofed.

When will you have my dedicated server ready? :)))

Len

http://BIND8NT.MEIway.com : Binary for ISC BIND 8.2.3 for NT4 & W2K http://IMGate.MEIway.com : Build free, hi-perf, anti-spam mail gateways

Similar Subject Line Posts (+/- two weeks of this post)

RE: PROBEM WITH MY MAIL	21 Feb 2001	(127 v/ +2 r)
RE: PROBEM WITH MY MAIL	20 Feb 2001 (this post)	(40 v/ +0 r)
Re: PROBEM WITH MY MAIL	20 Feb 2001	(37 v/ +0 r)
Re: PROBEM WITH MY MAIL	20 Feb 2001	(37 v/ +0 r)
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