Postfix – Configuration Tips to Fight Spam

Postfix Configuration Tips to Fight Spam

In this guide you will learn how to tweak the default postfix configuration for incoming emails. In Postfix configuration you need to add or edit following directives on /etc/postfix/main.cf configuration file. All configuration directives are explained in the postfix website. Postfix Configuration Parameters smtpd_helo_required = yes Require that a remote SMTP client introduces itself with … Read more

Add RBL list to cPanel server

Add RBL list to cPanel server

This tutorial we show how you can use the RBLs interface to configure your mail server to check incoming mail against the available RBLs. Your server will block the incoming messages if the IP address or hostname matches an cPanel RBL entry. RBL is short for “Real-time Blackhole List.” RBL servers keep lists of spam-heavy … Read more

ModSecurity with RBL Database

Tutorial

This tutorial we showing how you can use ModSecurity with RBL database’s to block access to web server. ModSecurity RBL We can use at mod_security phase 1 to optimise these rules and reduce server load, before PHP start executing requests. Here are more information how to ModSecurity processing phases. Also you can use Local DNS … Read more

Delegate subdomain cloudflare to other DNS servers

There are many examples where you may need to have a specific subdomain’s DNS be managed by a different nameserver. The example we want delegate rbl.malware.expert another Bind DNS server for RBL database queries. First we need Primary Domain (malware.expert) add new NS Records rbl.malware.expert: Then we need also A-Record rbl2.malware.expert to point BIND-DNS server … Read more