Configuration of Smtp Server On CentOS 8
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This document provides instructions for configuring an SMTP server on CentOS 8, including installing Postfix and Dovecot, configuring configuration files like main.cf, master.cf, and firewall rules to allow access to ports 25, 465, and 587 for SMTP, SSL, and submission protocols. Key steps are installing Postfix and Dovecot packages, enabling and starting services, editing configuration files to set mail locations and UIDL formats, and opening required ports in the firewall.
Configuration of Smtp Server On CentOS 8
- 1. 1 CONFIGURATION OF SMTP SERVER ON CENTOS 8 sudo dnf install posftix –y sudo systemctl start postfix sudo systemct enable postfix vi /etc/postfix/main.cf postfix check dnf install dovecot vi /etc/dovecot/conf.d/10-mail.conf mail_location should be configured as down below. vi /etc/dovecot/conf.d/20-pop3.conf pop3_uidl_format should be configured as down below.
- 2. 2 vi /etc/postfix/master.cf Configure the master.cf as shown below. Give the firewall access iptables –A INPUT –p tcp –dport 25 –j ACCEPT iptables –A INPUT –p tcp –dport 465 –j ACCEPT iptables –A INPUT –p tcp –dport 587 –j ACCEPT 2/13/2022 X Kaan Aslandag Signed by: www.kaan1.com