Postfix Mail Server Configuration In Linux Step By Step In Centos

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.

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

Systemctl restart postfix if postfix does not start correctly you can use following commands to troubleshoot. Navigate to this link how to setup dns server. 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.

It is time we configure postfix mail server. After package installation continue with postfix configuration. Postfix is a common mail server many large distributions are shipped with postfix installed by default. Several steps are necessary to configure the postfix server the basic steps involved in this process are.

Dns server configuration in linux step by step centos. Configure forward zone file and reverse zone file using named chroot using centos or rhel 7. Let s start postfix configuration. Edit the master cf file.

Step 6 configure postfix mail server. 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. Email protected service iptables stop email protected service ip6tables stop email protected chkconfig iptables off email protected chkconfig ip6tables off. Although the same steps should work on rhel and scientific linux 7 distributions.

Make postfix as default mta for your system using the following command. Step 4 follow the below steps one by one for creation. Determine local mail delivery method. First create ssl certificate for encryption.

Firewall and selinux should be disabled. Setting up postfix smtp relay on centos rhel first let s install postfix smtp server on centos rhel with the following command. How to configure dns server in rhel 7 or rhel 8 step by step. Postfix s configuration file is located in etc postfix main cf.

Restart the service on both servers for the changes to take effect. I tested this setup on centos 64 bit server. We need to make a few changes in the configuration file so open it using your favorite text editor. Create an aliases table.

Set postfix selinux permission. If postfix is already running on your server then skip installing postfix. How to configure dns server in rhel 7 step by step. Alternatives set mta usr sbin sendmail postfix step 2 configure postfix.

Systemctl l status postfix journalctl xn postconf n. Configure postfix mail server centos rhel 7 8 now we are done with all the pre requisites. Install bind centos 7 or centos 8. Sudo dnf install postfix.

Dns server configuration in linux step by step centos. The above selinux boolean will allow postfix to write to the mail spool in the central server. The mail server should contain a valid mx record in the dns server.