Wolfgang Hottgenroth
b2249c06e9
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59 lines
1.6 KiB
Markdown
59 lines
1.6 KiB
Markdown
<!--
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title: Children Protection for Postfix-based EMail-Server
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date: 2013-06-27
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-->
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This small tool implements a whitelist on a Postfix mail-server. It prevents certain recipient addresses (your kids ones) from
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receiving mail from any not whitelisted address. Any mail from not whitelisted senders is redirected to a delegate (a parent).
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The code for this tool can is here: [https://gitea.hottis.de/wn/childprot](https://gitea.hottis.de/wn/childprot).
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Configure the tool by adding this line into the `master.cf` of the Postfix installation:
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```
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childprot unix - n n - 25 spawn user=mail argv=/opt/sbin/ChildProt
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```
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and this one to the `main.cf`:
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```
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check_policy_service unix:private/childprot
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```
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The restricted recipients and the whitelists are stored in an SQLite3 database:
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```
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CREATE TABLE child_address_t (
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child INTEGER REFERENCES child_t(id),
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address TEXT
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);
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CREATE TABLE child_t (
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id INTEGER PRIMARY KEY,
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name TEXT,
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delegate TEXT
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);
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CREATE TABLE whitelist_t (
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child INTEGER REFERENCES child_t(id),
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address TEXT
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);
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CREATE VIEW child_v AS
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SELECT c.id as id,
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c.delegate as delegate,
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ca.address as address
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FROM child_t c,
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child_address_t ca
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WHERE c.id = ca.child;
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```
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Restricted persons together with their delegates are added to the table `child_t`, multiple addresses can be assigned to those persons in
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`child_address_t`. Whitelists per person are maintained in `whitelist_t`.
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The tool is querying the view `child_v`.
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**Note: The code is unmaintained and here only for documentary reasons. It is not meant to be used any longer.**
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