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Re: filtering on From with postfix / postgrey

On Thu, Sep 04, 2008 at 07:07:39PM +0100, Philip wrote:
> I have three small children who would like an email account to email
> their friends.
> I have my own domain which points to a netbsd 3.1 mail server running
> postfix, postgrey and dovecot.
> What I would like to do is set up email accounts on the server for the
> children which will only receive email from a white list of From:
> addresses, but which will not affect other users normal accounts.
> I guess I don't need a whitelist per child if that makes any difference.
> I can't figure out how to do this, does anyone here know how to?

I think you could use header_checks(5):

# Usage (
# header_checks = regexp:/etc/postfix/header_checks
if /^(To|Cc): .**/
/^From:  OK
/^From:  OK
/^From:  OK
/^From:  OK
/^From: .*/                     REJECT

But I would prefer sieve if it's available.

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