Hello,
Thank you for the configuration, but I am still able to send email to addresses 
not listed in allowed_users. Here is my new config:

smtpd_recipient_restrictions = reject_unauth_destination, 
check_recipient_access hash:/etc/postfix/allowed_users, reject

I've restarted postfix, but I can email recipients not listed in allowed_users. 
Is there something else I'm missing?

Thanks again for your help!




________________________________
From: Victor Duchovni <victor.ducho...@morganstanley.com>
To: postfix-users@postfix.org
Sent: Friday, March 20, 2009 1:20:43 PM
Subject: Re: Issue with smtpd_recipient_restrictions

On Fri, Mar 20, 2009 at 11:13:21AM -0700, Post Freak wrote:

> I need to only allow access to known addresses, and found that setting
> up smtpd_recipient_restrictions in main.cf would reject unauthorized
> recipients. I have this setting in main.cf:
> 
> smtpd_recipient_restrictions =
>    hash:/etc/postfix/allowed_users,
>    reject_unauth_destination

Replace "reject_unauth_destination" with "reject" and don't use implicit
"check_mumble_access" in "smtpd_mumbe_restrictions". It is best to start
with "reject_unauth_destination" so are not an open relay by accident
as the rule-set evolves, particularly if you add anti-spam rules, and
then whitelists for those rules:

    smtpd_recipient_restrictions =
    reject_unauth_destination,
    ... anti-spam rules here ...
    check_recipient_access hash:/etc/postfix/allowed_users,
    reject

-- 
    Viktor.

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