Postfix Mail Server Configuration In Linux Step By Step In Centos

Alternatives set mta usr sbin sendmail postfix step 2 configure postfix.

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

Systemctl l status postfix journalctl xn postconf n. 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. Step 6 configure postfix mail server. Step 4 follow the below steps one by one for creation.

Configure postfix mail server centos rhel 7 8 now we are done with all the pre requisites. Edit the master cf file. Make postfix as default mta for your system using the following command. 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. Set postfix selinux permission. Determine local mail delivery method. The mail server should contain a valid mx record in the dns server.

Systemctl restart postfix if postfix does not start correctly you can use following commands to troubleshoot. 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. Edit the main cf file. Create an aliases table.

How to configure dns server in rhel 7 step by step. Let s start postfix configuration. Use below command to do the same else skip it. How to configure dns server in rhel 7 or rhel 8 step by step.

Navigate to this link how to setup dns server. Restart the service on both servers for the changes to take effect. Postfix s configuration file is located in etc postfix main cf. Make changes to the following lines.

Although the same steps should work on rhel and scientific linux 7 distributions. 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. Install bind centos 7 or centos 8.

After package installation continue with postfix configuration. It is time we configure postfix mail server. Sudo dnf install postfix. Firewall and selinux should be disabled.

Dns server configuration in linux step by step centos. Postfix is a common mail server many large distributions are shipped with postfix installed by default. Root mail mkdir etc postfix ssl root mail cd etc postfix ssl root krizna ssl openssl genrsa des3 out server key 2048. The above selinux boolean will allow postfix to write to the mail spool in the central server.

We need to make a few changes in the configuration file so open it using your favorite text editor. Configure forward zone file and reverse zone file using named chroot using centos or rhel 7. Setting up postfix smtp relay on centos rhel first let s install postfix smtp server on centos rhel with the following command.