Postfix Mail Server Configuration In Linux Step By Step In Centos

Install bind centos 7 or centos 8.

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

Let s start postfix configuration. Dns server configuration in linux step by step centos. Make changes to the following lines. How to configure dns server in rhel 7 step by step.

Setting up postfix smtp relay on centos rhel first let s install postfix smtp server on centos rhel with the following command. Although the same steps should work on rhel and scientific linux 7 distributions. Navigate to this link how to setup dns server. Edit the master cf file.

Configure postfix mail server centos rhel 7 8 now we are done with all the pre requisites. Root mail mkdir etc postfix ssl root mail cd etc postfix ssl root krizna ssl openssl genrsa des3 out server key 2048. Set postfix selinux permission. Configure forward zone file and reverse zone file using named chroot using centos or rhel 7.

We need to make a few changes in the configuration file so open it using your favorite text editor. Systemctl restart postfix if postfix does not start correctly you can use following commands to troubleshoot. Postfix s configuration file is located in etc postfix main cf. Use below command to do the same else skip it.

Postfix is a common mail server many large distributions are shipped with postfix installed by default. Systemctl l status postfix journalctl xn postconf n. First create ssl certificate for encryption. 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.

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. Make postfix as default mta for your system using the following command. Alternatives set mta usr sbin sendmail postfix step 2 configure postfix. Edit the main cf file.

Step 4 follow the below steps one by one for creation. The mail server should contain a valid mx record in the dns server. Determine local mail delivery method. I tested this setup on centos 64 bit server.

Step 6 configure postfix mail server. After package installation continue with postfix configuration. How to configure dns server in rhel 7 or rhel 8 step by step. It is time we configure postfix mail server.

The above selinux boolean will allow postfix to write to the mail spool in the central server. Restart the service on both servers for the changes to take effect. Alternatives set mta usr sbin postfix if above command not work and you get the output as usr sbin postfix has not been configured as an alternative for mta. Create an aliases table.

Firewall and selinux should be disabled. Several steps are necessary to configure the postfix server the basic steps involved in this process are. Email protected service iptables stop email protected service ip6tables stop email protected chkconfig iptables off email protected chkconfig ip6tables off.