how do i do that? You have not mentioned before....

On Sun, May 31, 2009 at 9:54 PM, Jeremiah Bess <[email protected]>wrote:

> So is the 92.242.132.2 the address for your linux mail server? You can use
> the telnet trick I posted earlier to check functionality.
>
> Jeremiah E. Bess
> Network Ninja, Penguin Geek, Father of four
>
>
> On Sun, May 31, 2009 at 10:15, Jibz <[email protected]> wrote:
>
>>
>> Name:    mx.mydomain.com
>> Address:  92.242.132.2
>>
>>
>> On Sun, May 31, 2009 at 9:40 PM, Jeremiah Bess 
>> <[email protected]>wrote:
>>
>>> From a machine other than your linux mail server, type this at a command
>>> prompt:
>>>
>>> nslookup -type=mx mydomain.com
>>>
>>> post the results here
>>>
>>> Jeremiah E. Bess
>>> Network Ninja, Penguin Geek, Father of four
>>>
>>>
>>> On Sun, May 31, 2009 at 10:06, Jibz <[email protected]> wrote:
>>>
>>>> maybe i'm being too foolish.....  how do i find that???
>>>>
>>>>
>>>> On Sun, May 31, 2009 at 9:34 PM, Jeremiah Bess <[email protected]
>>>> > wrote:
>>>>
>>>>> The MX record that points to mydomain.com
>>>>>
>>>>> Jeremiah E. Bess
>>>>> Network Ninja, Penguin Geek, Father of four
>>>>>
>>>>>
>>>>> On Sun, May 31, 2009 at 10:03, Jibz <[email protected]> wrote:
>>>>>
>>>>>> MX record of my linux server or the windows exchange server?
>>>>>>
>>>>>>
>>>>>> On Sun, May 31, 2009 at 9:29 PM, Jeremiah Bess <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> What does your MX record point to?
>>>>>>>
>>>>>>> Jeremiah E. Bess
>>>>>>> Network Ninja, Penguin Geek, Father of four
>>>>>>>
>>>>>>>
>>>>>>> On Sun, May 31, 2009 at 09:56, Jibz <[email protected]> wrote:
>>>>>>>
>>>>>>>> hey!!! thanks!! that did a great help
>>>>>>>>
>>>>>>>> but i have a small issue pending...
>>>>>>>>
>>>>>>>> the mails if i send to *[email protected]* are being
>>>>>>>> delivered, but the ones to *[email protected]* are not.
>>>>>>>>
>>>>>>>> why could it be so???
>>>>>>>>
>>>>>>>> mails being send from my server are being received as *
>>>>>>>> [email protected]*.
>>>>>>>>
>>>>>>>> how do i change it to *[email protected]*??
>>>>>>>>
>>>>>>>> where do i define my domain???
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sun, May 31, 2009 at 9:25 AM, Jeremiah Bess <
>>>>>>>> [email protected]> wrote:
>>>>>>>>
>>>>>>>>> I'm not an exchange guy, so I can't help much in that area. Is
>>>>>>>>> there any reason why you have to use the exchange server as a relay?
>>>>>>>>>
>>>>>>>>> Jeremiah E. Bess
>>>>>>>>> Network Ninja, Penguin Geek, Father of four
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Sat, May 30, 2009 at 21:28, Jibz <[email protected]> wrote:
>>>>>>>>>
>>>>>>>>>>  Is there any way i can tell my mail server to not to deny that
>>>>>>>>>> IP? Can i change the configuration not to check for relay?
>>>>>>>>>>
>>>>>>>>>> On Sun, May 31, 2009 at 2:48 AM, Jeremiah Bess <
>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>
>>>>>>>>>>> This is because your internet address does not reverse map to the
>>>>>>>>>>> DNS domain you are sending from. You need to set your external DNS 
>>>>>>>>>>> to use
>>>>>>>>>>> your NATed address, or use a dynamic DNS hosting service like 
>>>>>>>>>>> dnydns or
>>>>>>>>>>> no-ip.com.
>>>>>>>>>>>
>>>>>>>>>>> Basically, when you go to iptools.com and do a MX lookup for
>>>>>>>>>>> yourdomain.com, it should show the internet address of your ISP
>>>>>>>>>>> modem. Additionally, your IP should reverse map to
>>>>>>>>>>> yourdomain.com.
>>>>>>>>>>>
>>>>>>>>>>> Jeremiah E. Bess
>>>>>>>>>>> Network Ninja, Penguin Geek, Father of four
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Sat, May 30, 2009 at 12:10, Jibz <[email protected]>wrote:
>>>>>>>>>>>
>>>>>>>>>>>> I have setup a mail server on CentOS 5
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> sendmail-8.13
>>>>>>>>>>>>
>>>>>>>>>>>> I'm able to sent and receive mails from yahoo and gmail.
>>>>>>>>>>>> I've another microsoft exchange server on the same network.
>>>>>>>>>>>> Mails sent from that server to my mail server gets bounced.
>>>>>>>>>>>>
>>>>>>>>>>>> I got this error in /var/log/mail
>>>>>>>>>>>>
>>>>>>>>>>>> *May 30 22:11:24 myhostname sendmail[31981]: n4UGfO5L031981:
>>>>>>>>>>>> ruleset=check_rcpt, arg1=<[email protected]>, relay=
>>>>>>>>>>>> mx1.exchangeserver.com[public IP of exchange server] (may be
>>>>>>>>>>>> forged), reject=550 5.7.1 <[email protected]>... Relaying
>>>>>>>>>>>> denied. IP name possibly forged [public IP of exchange server]
>>>>>>>>>>>>
>>>>>>>>>>>> May 30 22:11:24 myhostname sendmail[31981]: n4UGfO5L031981:
>>>>>>>>>>>> from=<usern...@exchangeserver>, size=0, class=0, nrcpts=0,
>>>>>>>>>>>> proto=SMTP, daemon=MTA, relay=mx1.exchangeserver.com [public IP
>>>>>>>>>>>> of exchange server] (may be forged)*
>>>>>>>>>>>>
>>>>>>>>>>>> As the exchange server is in my network if you do a lookup for
>>>>>>>>>>>> the domain name of that server you will get the local IP only.
>>>>>>>>>>>>
>>>>>>>>>>>> So i changed the entry of my /etc/hosts file
>>>>>>>>>>>>
>>>>>>>>>>>> and added
>>>>>>>>>>>>
>>>>>>>>>>>> <PUBLIC IP>  <exchangeserver.com>
>>>>>>>>>>>>
>>>>>>>>>>>> Now still the mails bounces but a different error
>>>>>>>>>>>>
>>>>>>>>>>>> *May 30 22:42:10 myhostname sendmail[32645]: n4UHCASl032645:
>>>>>>>>>>>> ruleset=check_rcpt, arg1=<[email protected]>,
>>>>>>>>>>>> relay=mail.exchangeserverom [public IP of exchange server], 
>>>>>>>>>>>> reject=550 5.7.1
>>>>>>>>>>>> <[email protected]>... Relaying denied
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> May 30 22:42:10 myhostname sendmail[32645]: n4UHCASl032645:
>>>>>>>>>>>> from=<usern...@exchangeserver>, size=0, class=0, nrcpts=0,
>>>>>>>>>>>> proto=SMTP, daemon=MTA, relay=mail.exchangeserver[public IP of 
>>>>>>>>>>>> exchange
>>>>>>>>>>>> server]*
>>>>>>>>>>>>
>>>>>>>>>>>> Please help me out!!!!
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> "The will of God will never take you where the Grace of God will
>>>>>>>>>> not protect you."
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> "The will of God will never take you where the Grace of God will not
>>>>>>>> protect you."
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> "The will of God will never take you where the Grace of God will not
>>>>>> protect you."
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> "The will of God will never take you where the Grace of God will not
>>>> protect you."
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>> --
>> "The will of God will never take you where the Grace of God will not
>> protect you."
>>
>>
>>
>
> >
>


-- 
"The will of God will never take you where the Grace of God will not protect
you."

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