| Integration SpamAssassin with Postfix |
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| This file contains information on how to integrate SpamAssassin with Postfix |
| for incoming mails. |
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| 1. Set SpamAssassin to start after booting the system |
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| Edit /etc/defaults/spamassassin and set SpamAssassin to start after a reboot. |
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| 2. Start SpamAssassin |
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| /etc/init.d/spamassassin start |
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| 3. Create a filter user. |
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| adduser --disabled-password --disabled-login --gecos "Postfix Filter User" filter |
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| 4. Create the filter script. |
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| Under ~filter, create filter.sh: |
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| #!/bin/sh |
| /bin/cat | /usr/bin/spamc -f | /usr/sbin/sendmail -i "$@" |
| exit $? |
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| Be sure to chmod it to 750, at least. |
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| A more complete example can be found under /usr/share/doc/spamassassin/examples |
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| 5. Set /etc/postfix/master.cf |
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| It must contain the following lines: |
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| localhost:smtp inet n - - - - smtpd |
| <external.ip>:smtp inet n - - - - smtpd |
| -o content_filter=filter: |
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| [...] |
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| filter unix - n n - - pipe |
| flags=Rq user=filter argv=/home/filter/filter.sh -f ${sender} -- ${recipient} |
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| 6. Reload postfix |
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| As root, exec: |
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| #> postfix reload |
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| That should be it. |
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| Aug 2003, Jesus Climent |
