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- Wednesday, October 31st, 2007 at 4:37:11am UTC
- Step 2: Configure Postfix to use a content filter
- The next step is to configure Postfix to use DSPAM as a content filter.
- This is relatively simple and requires only a minor change to your
- master.cf file:
- Change:
- smtp inet n - n - - smtpd
- To:
- smtp inet n - n - - smtpd
- -o content_filter=lmtp:unix:/tmp/dspam.sock
- This tells Postfix to send all mail to DSPAM for content filtering.
- Step 3: Configure a Reinjection Port
- You'll also need to configure Postfix to listen on a local port for
- reinjection. This is where DSPAM sends back the "good" mail (or alternatively,
- tagged mail also). Add this to your master.cf:
- localhost:10026 inet n - n - - smtpd
- -o content_filter=
- -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
- -o smtpd_helo_restrictions=
- -o smtpd_client_restrictions=
- -o smtpd_sender_restrictions=
- -o smtpd_recipient_restrictions=permit_mynetworks,reject
- -o mynetworks=127.0.0.0/8
- -o smtpd_authorized_xforward_hosts=127.0.0.0/8
- Any mail sent to localhost:10026 will be delivered in whatever way you
- have configured Postfix, without being passed through DSPAM again. This is
- also where DSPAM will deliver false positives to when they are retrained by
- the user.
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