On Fri, Aug 30, 2013 at 2:44 PM, Wietse Venema <wie...@porcupine.org> wrote:

> Jean-S?bastien Nicaise:
> > I'm verifying the sender email (mail from:) of mails sent from local
> users,
> > not the recipient email (rcpt to:).
>
> In that case.
>
> /etc/postfix/main.cf:
>     smtpd_reject_unlisted_sender = yes
>
> This turns on "used unknown" tests for for MAIL FROM addresses.
>
>         Wietse
>


This does look like what I need, although it is not working.

Mail still goes through.

Aug 30 15:11:15 mail01 postfix/qmgr[18491]: E05B660373: from=<
t...@yasdsdfdf.net>, size=2755, nrcpt=1 (queue active)
Aug 30 15:11:16 mail01 postfix/smtp[18536]: E05B660373: to=<*REMOVED*>,
relay=gmail-smtp-in.l.google.com[173.194.74.27]:25, delay=0.95,
delays=0.02/0.01/0.3/0.62, dsn=2.0.0, status=sent (250 2.0.0 OK 1377889894
g8si4772232qam.41 - gsmtp)

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