DNS MX record and Postfix Relay host of ISP

Sat Aug 16 18:49:29 UTC 2008

As far as DNS, you need to your your MX record fixed. To do that, you'll
need to get your DNS provide to make the following records. Anything beyond
that is outside the scope of this mailing list unless someone else knows
more about Postfix...which wouldn't take much since my Postfix knowledge
would fit on the period ending this sentence.
coreteamsolutions.in.    86400    IN    MX    10 mail.coreteamsolutions.in.
(this one is done and is correct)
mails.coreteamsolutions.in. 86400 IN    A    66.7.148.25 (this needs to be
an A record rather than a CNAME and it needs to point to the IP address you
want the mail sent to. If that is through your relay server, than use that
IP address. If you want email coming from the internet to go directly to
your mail server, than you need to use your mail servers public IP address)

Since RapiDNS owns you DNS records, you will need them to make those
changes. It looks like their contact information is as follows:
email: hostmaster at rapidns.com
If that doesn't work, you can try this contact info:
Administrator Contact :
   Web Werks India Pvt. Ltd
   Web Werks India Pvt. Ltd
   (nikhil at wwindia.com)
   124 Unique Industrial Estate
   Prabhadevi
   Mumbai
   Maharashtra, 400025
   IN
   Tel. +91.2240500600   Fax. +91.2240500600

Technical Contact :
   Web Werks India Pvt. Ltd
   Web Werks India Pvt. Ltd
   (nikhil at wwindia.com)
   124 Unique Industrial Estate
   Prabhadevi
   Mumbai
   Maharashtra, 400025
   IN
   Tel. +91.2240500600   Fax. +91.2240500600

Billing Contact :
   Web Werks India Pvt. Ltd
   Web Werks India Pvt. Ltd
   (nikhil at wwindia.com)
   124 Unique Industrial Estate
   Prabhadevi
   Mumbai
   Maharashtra, 400025
   IN
   Tel. +91.2240500600   Fax. +91.2240500600

On Sat, Aug 16, 2008 at 11:29 AM, Sharad Kanekar
<sharad.kanekar at yahoo.com>wrote:

> Dear Sir,
>              Thanks for your reply. I registered one domain 0n 66.7.148.25which is having my POP account and website
> http://coreteamsolutions.in. Now I have to make mailserver as
> mails.coreteamsolutions.in on another Public IP and want to relay mails
> through 66.7.148.25. So I configured Postfix mailserver on CentOS 5.2. But
> Problem is that I am not able to relay mails. So as Postfix guru told me I
> have to set MX record which points to ISP' s relay server for that I am
> configuring DNS as mails.coreteamsolutions.in on IP 59.181.109.35. Please
> help me how to solve my problem.
> I am waiting for your answer.
> Thanks
>
>
>
> sharad kanekar:
> > Dear All,
> >              I configured Postfix 2.3.3-2  on CentOS 5.2.  But I am
> unable
> > to send receive mails. I want to use ISP as relay host
>
> To send mail using the ISP as relay host, use the main.cf:relayhost
> parameter. http://www.postfix.org/postconf.5.html#relayhost
>
> To receive mail for mails.coreteamsolutions.in via the ISP, you need
> to set an MX record that points to the ISP, and you need to arrange
> with the ISP that they forward your mail to the local machine. The
> exact details depend on how the ISP's mail system works.
>
>        Wietse
> - Show quoted text -
>
> ----- Original Message ----
> From: Dawn Connelly <dawn.connelly at gmail.com>
> To: Sharad Kanekar <sharad.kanekar at yahoo.com>; bind-users at isc.org
> Sent: Saturday, 16 August, 2008 11:25:49 PM
> Subject: Re: DNS MX record and Postfix Relay host of ISP
>
> Um, okay. Let me see if I'm understanding this correctly. The FQDN of your
> mail server is mails.coreteamsolutions.in which resolves to 207.106.22.3.
> Your MX record points to that FQDN, but it's actually a CNAME. That's
> problem number 1. MX records aren't very happy with CNAME records. You need
> to get your DNS provider to make it an A record instead.
>
> I'm not sure what you are expecting with the 192.168.1.202 resolution.
> That is private IP address space. As far as the internet as concerned, that
> IP address doesn't exist. If you need that IP address to resolve, you need
> to make your DNS server authoritative for that zone. No amount of magic is
> going to make that work without you being authoritative. If you are trying
> to make sure that your foward and reverse records match, you are going to
> need to get RapiDNS.com to change the PTR record for 207.106.22.3 to
> resolve to mails.coreteamsolutions.in. They own that IP address space.
>
> On Sat, Aug 16, 2008 at 10:33 AM, Sharad Kanekar <sharad.kanekar at yahoo.com
> > wrote:
>
>> [root at mails ~]# dig -x 192.168.1.202
>>
>> ; <<>> DiG 9.3.4-P1 <<>> -x 192.168.1.202
>> ;; global options:  printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 48178
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
>>
>> ;; QUESTION SECTION:
>> ;202.1.168.192.in-addr.arpa.    IN      PTR
>>
>> ;; AUTHORITY SECTION:
>> 168.192.in-addr.arpa.   8497    IN      SOA     prisoner..iana.org.
>> hostmaster.root-servers.org. 1 1800 900 604800 604800
>>
>> ;; Query time: 319 msec
>> ;; SERVER: 168.95.1.1#53(168.95.1.1)<http://168.95.1.1#53%28168.95.1.1%29>
>> ;; WHEN: Sat Aug 16 22:59:08 2008
>> ;; MSG SIZE  rcvd: 121
>>
>> [root at mails ~]# dig mails.coreteamsolutions.in
>>
>> ; <<>> DiG 9.3.4-P1 <<>> mails.coreteamsolutions.in
>> ;; global options:  printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31876
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 2
>>
>> ;; QUESTION SECTION:
>> ;mails.coreteamsolutions.in.    IN      A
>>
>> ;; ANSWER SECTION:
>> mails.coreteamsolutions.in. 86400 IN    CNAME   rapidns.com.
>> rapidns.com.            86400   IN      A       207.106.22.3
>>
>> ;; AUTHORITY SECTION:
>> rapidns.com.            86400   IN      NS      ns2.rapidns.com.
>> rapidns.com.            86400   IN      NS      ns1.rapidns.com.
>>
>> ;; ADDITIONAL SECTION:
>> ns2.rapidns.com.        163390  IN      A       66.7.149.52
>> ns1.rapidns.com.        163390  IN      A       207.106.22.124
>>
>> ;; Query time: 841 msec
>> ;; SERVER: 168.95.1.1#53(168.95.1.1)<http://168.95.1.1#53%28168.95.1.1%29>
>> ;; WHEN: Sat Aug 16 22:59:40 2008
>> ;; MSG SIZE  rcvd: 179
>>
>> [root at mails ~]# nslookup -sil 192.168.1.202
>> Server:         168.95.1.1
>> Address:        168.95.1.1#53
>>
>> ** server can't find 202.1.168.192.in-addr.arpa: NXDOMAIN
>>
>> [root at mails ~]# nslookup -sil mails.coreteamsolutions.in
>> ;; Got SERVFAIL reply from 192..168.1.202, trying next server
>> Server:         168.95.1.1
>> Address:        168.95.1.1#53
>>
>> Non-authoritative answer:
>> mails.coreteamsolutions.in      canonical name = rapidns.com.
>> Name:   rapidns.com
>> Address: 207.106.22.3
>>
>> and Postfix server configuration is:
>>
>> [root at mails ~]# postconf -n
>> alias_database = hash:/etc/aliases
>> alias_maps = hash:/etc/aliases
>> command_directory = /usr/sbin
>> config_directory = /etc/postfix
>> daemon_directory = /usr/libexec/postfix
>> debug_peer_level = 2
>> html_directory = no
>> inet_interfaces = all
>> mail_owner = postfix
>> mail_spool_directory = /var/spool/mail
>> mailq_path = /usr/bin/mailq.postfix
>> manpage_directory = /usr/share/man
>> mydestination = $myhostname, localhost.$mydomain, localhost
>> mydomain = coreteamsolutions.in
>> myhostname = mails..coreteamsolutions.in<http://mails.coreteamsolutions.in>
>> mynetworks = 192.168.1.0/24, 127.0.0.0/8
>> mynetworks_style = subnet
>> myorigin = $myhostname
>> newaliases_path = /usr/bin/newaliases.postfix
>> queue_directory = /var/spool/postfix
>> readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
>> relayhost = 66.7.148.25
>> sample_directory = /usr/share/doc/postfix-2.3.3/samples
>> sendmail_path = /usr/sbin/sendmail.postfix
>> setgid_group = postdrop
>> unknown_local_recipient_reject_code = 550
>> [root at mails ~]#
>>
>>  Please help me to rectify the problem
>> Thanks
>>
>> ----- Original Message ----
>> From: Dawn Connelly <dawn.connelly at gmail.com>
>> To: Sharad Kanekar <sharad.kanekar at yahoo.com>
>> Cc: bind-users at isc.org
>> Sent: Saturday, 16 August, 2008 10:27:37 PM
>> Subject: Re: (no subject)
>>
>> How to configure DNS is a question that would take volumes to answer. Can
>> you be more specific? What part of DNS are you trying to configure? I'm
>> assuming you have at least tried and it didn't work. What kind of error
>> messages/unexpected behaviors are you getting? We'd all love to help but you
>> gotta point the cannon in the right direction.
>>
>> On Sat, Aug 16, 2008 at 8:22 AM, Sharad Kanekar <sharad.kanekar at yahoo.com
>> > wrote:
>>
>>> Dear All,
>>>              I  want to configure DNS for mailserver and use this
>>> mailserver to send and receive mail for my domain and relay mails through
>>> ISP's relay. So please help me that how do I configure DNS I am using CentOS
>>> 5.2 and Postfix 2.3.3-2.
>>> Thanks .
>>>
>>>
>>>
>>>      Unlimited freedom, unlimited storage.. Get it now, on
>>> http://help.yahoo..com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/<http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/>
>>>
>>>
>>
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