Postfix Mail Server Configuration In Linux Step By Step In Centos

The mail server should contain a valid mx record in the dns server.

Postfix mail server configuration in linux step by step in centos.

Configure postfix mail server centos rhel 7 8 now we are done with all the pre requisites. Email protected service iptables stop email protected service ip6tables stop email protected chkconfig iptables off email protected chkconfig ip6tables off. Make postfix as default mta for your system using the following command. Postfix s configuration file is located in etc postfix main cf.

Several steps are necessary to configure the postfix server the basic steps involved in this process are. Sudo dnf install postfix. Setting up postfix smtp relay on centos rhel first let s install postfix smtp server on centos rhel with the following command. Use below command to do the same else skip it.

Root mail mkdir etc postfix ssl root mail cd etc postfix ssl root krizna ssl openssl genrsa des3 out server key 2048. Dns server configuration in linux step by step centos. How to configure dns server in rhel 7 step by step. Step 6 configure postfix mail server.

Determine local mail delivery method. Let s start postfix configuration. Edit the main cf file. If postfix is already running on your server then skip installing postfix.

Navigate to this link how to setup dns server. Systemctl restart postfix if postfix does not start correctly you can use following commands to troubleshoot. First create ssl certificate for encryption. Create an aliases table.

Restart the service on both servers for the changes to take effect. The default configuration allows local mailing only but that in itself is very useful on a machine used by many users and even if there is no such traffic many services dump their reports and messages into e mails which is delivered to the root user locally so the sysadmin will be. Make changes to the following lines. I tested this setup on centos 64 bit server.

The above selinux boolean will allow postfix to write to the mail spool in the central server. Configure forward zone file and reverse zone file using named chroot using centos or rhel 7. Alternatives set mta usr sbin sendmail postfix step 2 configure postfix. How to configure dns server in rhel 7 or rhel 8 step by step.

Dns server configuration in linux step by step centos. It is time we configure postfix mail server. However if you want send receive mails to outside you should configure the mail server with a public ip and request your isp to configure the mx record of your mail server in their dns server. Install bind centos 7 or centos 8.

We need to make a few changes in the configuration file so open it using your favorite text editor. Although the same steps should work on rhel and scientific linux 7 distributions. Postfix is a common mail server many large distributions are shipped with postfix installed by default. Firewall and selinux should be disabled.

Systemctl l status postfix journalctl xn postconf n. Step 4 follow the below steps one by one for creation. Set postfix selinux permission.