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Thread: reverse DNS issue?

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  1. #1
    Join Date
    Feb 2008
    Location
    San Francisco
    Posts
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    Default reverse DNS issue? -> 25 Connection Timed Out? = emails stuck in queue

    For a couple of domains we send email to, we are unable to send and receive.
    The email errors say "connection timed out"
    And when I telnet it too says "connection timed out"
    I've spoken with the netadmins at these domains and they have told me I'm missing my reverse DNS for our mail server.

    How would I do this?

    CentOS 5.3 Bind

    ; <<>> DiG 9.3.4-P1 <<>> mail.domain.com any
    ;; global options: printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36617
    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

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

    ;; ANSWER SECTION:
    mail.domain.com. 120 IN SOA ns1.domain.com. netadmin.netadmin.com. 1255040795 120 120 604800 38400
    mail.domain.com. 120 IN NS 192.168.1.248.mail.domain.com.
    mail.domain.com. 120 IN A 192.168.1.248
    mail.domain.com. 120 IN MX 10 mail.domain.com.

    ;; Query time: 0 msec
    ;; SERVER: 192.168.1.248#53(192.168.1.248)
    ;; WHEN: Thu Apr 29 11:37:34 2010
    ;; MSG SIZE rcvd: 157

    Thanks!
    Last edited by NoDoze; 05-06-2010 at 10:45 AM.

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