How to configure postfix to use 0spam
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- Make sure you have Postfix installed on your server. You may also need to install
postfix-pcre
orpostfix-pgsql
packages if you haven't already, depending on your specific needs. - Open the Postfix main configuration file for editing. This file is usually located at
/etc/postfix/main.cf
:sudo nano /etc/postfix/main.cf
- Add the following lines to your
main.cf
file to configure Postfix to use bl.0spam.org:smtpd_client_restrictions =
...
reject_rbl_client bl.0spam.org,
...
You should place these lines within thesmtpd_client_restrictions
section of yourmain.cf
file. Be sure to keep the other existing configuration options intact. - Save the changes and exit the text editor.
- Reload the Postfix configuration to apply the changes:
sudo postfix reload
- Test your configuration to ensure that it's working as expected. You can use the
postmap
command to check if DNSBL lookups are working:postmap -q "some.example.ip.address.bl.0spam.org" /dev/null
Replace"some.example.ip.address"
with an IP address you want to test. If the DNSBL lookup is successful, you will receive a response such as "127.0.0.2" (indicating a blacklisted IP). - Monitor your mail logs to see if any incoming connections are rejected due to the DNSBL lookup. You can check the Postfix logs in
/var/log/mail.log
or a similar location, depending on your system configuration.
0spam is not responsible for errors in these instructions or mistakes. Always make backups prior to making any configuration changes to your server.