From: Anant Athavale (anantisac.gov.in)
Date: Mon May 29 2006 - 22:34:24 CDT

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Thanks for the reply. But, I have found one option in gmail, which
allows me to send a mail as any other e-mail address. When i receive
the mail, it has headers added to it saying clearly it is from gmail
account, but my from line is cleary my domain.

I wan't to stop such mails. But my existing rules do not seem to reject.

Regards,
Anant.

----- Message from postfixdjtremors.com ---------
     Date: Mon, 29 May 2006 21:46:26 +1000
     From: postfixdjtremors.com
Reply-To: postfixdjtremors.com
  Subject: RE: How to stop receiving mails from the same domain from outside.
       To: 'Anant Athavale' <anantisac.gov.in>

> I don't know about your setting but what I did to our companies postfix
> server was to implement SPF policies which not only stops forged messages to
> us but also prevents our domain being used elsewhere as long as the
> recipients server uses SPF policies as well.
>
> -----Original Message-----
> From: owner-postfix-userspostfix.org
> [mailto:owner-postfix-userspostfix.org] On Behalf Of Anant Athavale
> Sent: Monday, 29 May 2006 9:38 PM
> To: postfix-userspostfix.org
> Subject: How to stop receiving mails from the same domain from outside.
>
> Dear List:
>
> My domain is isac.gov.in, and I don't want to get a mail from an outsider
> with the same domain (forged mail).
>
> I have implemented two steps:
>
> under smtp_recipient_restrictions
>
> I have check_sender_access dbm:abcd and
> check_helo_access dbm:abcd
>
>
> the contents of abcd is
>
> isac.gov.in REJECT.
>
> Is it the correct way to stop forged mails for our domain?
>
> Regards,
> Anant.
>
>

----- End message from postfixdjtremors.com -----

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