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Old 03-17-2004, 03:51 PM   #1
Registered: Mar 2004
Distribution: CentOS 5
Posts: 128

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problem when sending mail

when I send mail through my linux server to hotmail I get the following error

Name server: host name lookup failure

I can send to any other domain, but hotmail always fails. I'm not running DNS on this box. Is the problem the DNS server? I have a primary and secondary DNS entered the primary is through my ISP and the secondary is a bellsouth DNS server.
Old 03-17-2004, 08:26 PM   #2
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Registered: Jul 2002
Location: East Centra Illinois, USA
Distribution: Debian stable
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A simple test. Dial into you ISP. Open a terminal and use the ping or traceroute commands to see if the address you want is active. Like this: ping If it's active, you'll get a response. It it's inactive, you won't. When I tried to ping the domain you specified, I got a domain number (the site is registered) , but no response (it's offline).
Old 03-17-2004, 09:14 PM   #3
Registered: Jul 2003
Distribution: FreeBSD 8.2 RELEASE
Posts: 607

Rep: Reputation: 31
Maybe hotmail is blocking your mail as spam? From what I understand, they don't allow incoming mail from servers without a valid MX record that matchs the senders email domain.
Old 03-18-2004, 09:59 AM   #4
Registered: Mar 2004
Distribution: CentOS 5
Posts: 128

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I found a solution to a similar problem here and tried it even though I didn't expect it to help. After I made the change to /etc/mail/mailertable I get a different error, now it says "Deferred: Connection timed out with"

When I try to ping I get an IP but no ping reply.

This is all new to me, I've been playing with linux for about 5-6 months now. What would I need to do if I don't have a valid MX record?

when I run dig MX i get the following

; <<>> DiG 9.2.2-P3 <<>> MX
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35114
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY:1, ADDITIONAL:0


;; AUTHORITY SECTION: 86400 IN SOA 2004030800 28800 7200 604800 86400

;; Query time: 50 msec
;; SERVER: (
;; WHEN: Thu Mar 18 10:52:43 2004
;; MSG SIZE rcvd: 98

Can you tell me what I need to do to fix this?


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