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Re: Mail server



> 
> I also cannot send  mail to this domain from any of my  three links. And the
> reason is a name server timeout. Thus sendmail cannot look up the mx records
> for his domain.And both dig and nslookup on the name servers for his domain
> time out.

Even talking SMTP to his mail server mail.jobantech.cd ( 212.39.163.3 ) is
not working. So his problem is a global problem.

His ping response time seems acceptable. So i am  thinking a
problem with  servers config.

PING 212.39.163.3 (212.39.163.3): 56 data bytes
64 bytes from 212.39.163.3: icmp_seq=0 ttl=243 time=1632.5 ms
64 bytes from 212.39.163.3: icmp_seq=1 ttl=243 time=1412.7 ms
64 bytes from 212.39.163.3: icmp_seq=2 ttl=243 time=1348.3 ms
64 bytes from 212.39.163.3: icmp_seq=3 ttl=243 time=1419.4 ms
64 bytes from 212.39.163.3: icmp_seq=4 ttl=243 time=1362.9 ms
64 bytes from 212.39.163.3: icmp_seq=5 ttl=243 time=1445.0 ms
64 bytes from 212.39.163.3: icmp_seq=6 ttl=243 time=1321.8 ms
64 bytes from 212.39.163.3: icmp_seq=7 ttl=243 time=1266.8 ms
64 bytes from 212.39.163.3: icmp_seq=8 ttl=243 time=1235.7 ms
64 bytes from 212.39.163.3: icmp_seq=9 ttl=243 time=1265.1 ms
64 bytes from 212.39.163.3: icmp_seq=10 ttl=243 time=1338.3 ms
64 bytes from 212.39.163.3: icmp_seq=11 ttl=243 time=1318.7 ms
64 bytes from 212.39.163.3: icmp_seq=12 ttl=243 time=1666.8 ms
64 bytes from 212.39.163.3: icmp_seq=13 ttl=243 time=1216.6 ms
64 bytes from 212.39.163.3: icmp_seq=14 ttl=243 time=1204.7 ms
64 bytes from 212.39.163.3: icmp_seq=15 ttl=243 time=1218.8 ms
64 bytes from 212.39.163.3: icmp_seq=16 ttl=243 time=1279.7 ms
64 bytes from 212.39.163.3: icmp_seq=17 ttl=243 time=1268.6 ms
64 bytes from 212.39.163.3: icmp_seq=18 ttl=243 time=1248.2 ms

--- 212.39.163.3 ping statistics ---
20 packets transmitted, 19 packets received, 5% packet loss
round-trip min/avg/max = 1204.7/1340.5/1666.8 ms

Are your servers  behind firewall/proxy server ?


In addition  the result below show that your two NS are on your network.
This is a bad config which should be avoided.


;; ANSWER SECTION:
jobantech.cd.           22h21m32s IN NS  dns.jobantech.cd.
jobantech.cd.           22h21m32s IN NS  mail.jobantech.cd.

;; ADDITIONAL SECTION:
dns.jobantech.cd.       22h21m32s IN A  212.39.163.4
mail.jobantech.cd.      22h21m32s IN A  212.39.163.3


--alain


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