Re: forged sender addresses from my domain

[Marek Kozlowski]

:-)

I'd like to disable any mail from 'my.domain' from external networks and non authenticated users. For envelope addresses my solution works and is as follows:

At first bind valid addresses with their owners:

Precisely:

smtpd_sender_restrictions =
        check_sender_acces ...
        check_client_access ...
        reject_sender_login_mismatch,

for some exceptions for the print server and some special pseudo-users.

Best regards,
/m

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