Fix enforce-spf.md
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@ -13,13 +13,13 @@ However if you want to prevent this kind of attack, you can enforce the SPF poli
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apt install -y postfix-pcre
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apt install -y postfix-pcre
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```
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```
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2) Add `pcre:/etc/postfix/body_checks` file with the following content
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2) Add `/etc/postfix/body_checks.pcre` file with the following content
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```
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```
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/^X-SimpleLogin-Client-IP:/ IGNORE
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/^X-SimpleLogin-Client-IP:/ IGNORE
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```
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```
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3) Add `pcre:/etc/postfix/client_headers.pcre` with the following content
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3) Add `/etc/postfix/client_headers.pcre` with the following content
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```
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```
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/^([0-9a-f:.]+)$/ prepend X-SimpleLogin-Client-IP: $1
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/^([0-9a-f:.]+)$/ prepend X-SimpleLogin-Client-IP: $1
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@ -28,7 +28,7 @@ apt install -y postfix-pcre
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4) Add the following lines to your Postfix config file at `/etc/postfix/main.cf`
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4) Add the following lines to your Postfix config file at `/etc/postfix/main.cf`
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```
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```
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body_checks = pcre:/etc/postfix/body_checks
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body_checks = pcre:/etc/postfix/body_checks.pcre
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smtpd_client_restrictions = pcre:/etc/postfix/client_headers.pcre
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smtpd_client_restrictions = pcre:/etc/postfix/client_headers.pcre
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```
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```
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