From: Anant S Athavale (anantisac.gov.in)
Date: Sun Jan 27 2008 - 06:25:02 CST

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Quoting "Jan P. Kessler" <postfixjpkessler.info>:

> Anant S Athavale schrieb:
>> Dear List: We want to achieve all incoming/outgoing mails from our

>> mail server using allways_bcc to feature to some e-mail id. This
>> email id sits on another box. This box should receive the mail for

>> backup email id only from that system (where always_bcc is
defined).
>> From anywhere else/other system if mail comes to this
id(always_bcc
>> id), it should reject. Suggest ways to implement it. Regards,
ANANT.
>>
>> ----------------------------------------------------------------
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>
> MAIN.CF:
> smtpd_restriction_class = bcc_only
> bcc_only = check_client_access hash:/etc/postfix/bcc_allowed,
reject
> smtpd_recipient_restrictions = permit_mynetworks,
> ...,
> reject_unauth_destination,
> ...,
> check_recipient_access = hash:/etc/postfix/bcc_recipients,
> ...
>
>
> /etc/postfix/bcc_recipients:
> bccadress.tld bcc_only
>
> /etc/postfix/bcc_allowed:
> ip.add.re.ss OK
>
>
>

Thanks for your prompt reply.

I have a problem with this. My system is something like dual-homed
gateway. permit_mynetworks will allow such mails still to continue to
be received. For ex. the system has two interfaces. i want to receive
that mail addressed to bcc only from one interface and reject if
received from the other and at the same time all other mails should be
accepted from both the interfaces.

Please clarify, if your example still holds good or slight
modifications may help.

Regards,
ANANT.

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