Re: Hide internal address (Postfix)

Aman Raheja <[email protected]>
Newsgroups gmane.comp.security.linux
Message-ID <[email protected]>
Steven makes a good point and this is true for many antispam software 
being used.
On the other hand if the IP address that is being published is of a 
private network, like 10.x.x.x or 192.168.x.x, the smart antispam 
software won't accept it either.
Aman Raheja

Steven Moix - Axianet.ch wrote:

> If you do so, aren't your mails rejected by some mail servers because  
> they consider that you have an illegal or incomplete header?
>
> Steven
>
> On Jan 10, 2006, at 3:56 PM, claus westerkamp wrote:
>
>> hello chris,
>>
>> this is how I've done it:
>>
>> add to main.cf
>>
>> header_checks = regexp:/etc/postfix/header_checks
>>
>> in that file you put
>>
>> "# Header checks file
>> #    /^Subject: Internet Sic Codes/  REJECT
>> #    /^Subject: ADV /
>> /^received: / IGNORE
>> /^X-Sender: / IGNORE
>> "
>>
>> that removes the the sender-header before you deliver it to the  
>> internet. works great besides eurora clients.
>>
>> yours claus
>>
>> [email protected] schrieb:
>>
>>> Hi everyone!
>>> Iam using Postfix for mail delivery.If somebody inside my network  
>>> send mail outside the network, the recipient can see in the  message 
>>> header the internal address of the sender host.I would  like to hide 
>>> it, or replace it with the external address of my  router.
>>> Any suggestion?
>>> best regards
>>> chris
>>> ps.:i appologize for my poorly grammar
>>
>>
>> -- 
>> Claus Westerkamp
>> Systems Engineering
>>
>> Raytion GmbH
>> Kaiser-Friedrich-Ring 74
>> 40547 Duesseldorf
>> Fon +49-211-550266-0
>> Fax +49-211-550266-19
>> http://www.raytion.com
>
>
>
>
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