[postfix-es] Postix dejo de enviar y recibir correo, será cosa del DNS?

[Yunior Barceló Chávez]

Hola a todos, los correo no salen ni entran del server postfix, he
mirado log y demás, no hay mas error que estos:
-----------------------------------------
E14131C896B      688 Thu Nov 17 16:52:02  yhernandez en mail.domain.com
(delivery temporarily suspended: connect to
127.0.0.1[127.0.0.1]:10024: Connection refused)
                                         idalmys en mail.com
                                         seguridad en mail.com

EEF5F1C8980     1774 Thu Nov 17 10:30:04  MAILER-DAEMON
                                                           (temporary failure)
                                         www-data en mail.domain.com
-------------------------------------------
Será tema del dns?

estube haciendo alguna pruebas: el dns parecer star bien. ¿me dan una
idea de lo que opueda suceder?

--------------------------------------------------------------
root en nodo01:/home/user# dig mail.domain.com MX

; <<>> DiG 9.7.3 <<>> mail.domain.com MX
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25750
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;mail.domain.com                        IN      MX

;; AUTHORITY SECTION:
domain.com              10800   IN      SOA     domain.com
root.domain.com 201006081 604800 86400 2419200 86400

;; Query time: 463 msec
;; SERVER: 192.168.70.2#53(192.168.70.2)
;; WHEN: Fri Nov 18 14:52:07 2011
;; MSG SIZE  rcvd: 73

root en nodo01:/home/user# nslookup mail.domain.com MX
nslookup: couldn't get address for 'MX': not found
root en nodo01:/home/user# nslookup mail.domain.com
Server:         192.168.70.2
Address:        192.168.70.2#53

Non-authoritative answer:
Name:   mail.domain.com
Address: 200.55.88.149
Name:   mail.domain.com
Address: 172.20.2.2

root en nodo01:/home/user#