Linux Postfix Mail Server

 Question: xFusionCorp Industries has planned to set up a common email server in Stork DC. After several meetings and recommendations, they have decided to use postfix as their mail transfer agent and dovecot as an IMAP/POP3 server. We would like you to perform the following steps:

Install and configure postfix on Stork DC mail server.

Create an email account ammar@stratos.xfusioncorp.com identified by B4zNgHA7Ya.

Set its mail directory to /home/ammar/Maildir.

Install and configure dovecot on the same server.

Please Note:-  Perform the below commands based on your question server,  user name & other details that might differ. So please read the task carefully before executing it. 

All the Best 👍

Solution:  

1. Login on the Mail  server as per the task and switch root user

thor@jump_host /$ ssh groot@stmail01 The authenticity of host 'stmail01 (172.16.238.11)' can't be established. ECDSA key fingerprint is SHA256:SySamszyWhhLGFiybhGBqfrr8g55wS/3e37ZpBOvICs. ECDSA key fingerprint is MD5:6d:31:18:2a:f9:07:f3:29:dd:0a:d3:1f:6e:04:0a:db. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'stmail01,172.16.238.17' (ECDSA) to the list of known hosts. groot@stmail01's password: [groot@stmail01 ~]$ sudo su -  We trust you have received the usual lecture from the local System Administrator. It usually boils down to these three things:      #1) Respect the privacy of others.     #2) Think before you type.     #3) With great power comes great responsibility.  [sudo] password for groot: [root@stmail01 ~]#

2. Install the packages  Postfix & Dovecot 

[root@stmail01 ~]# yum install postfix -y Loaded plugins: fastestmirror, ovl Loading mirror speeds from cached hostfile  * base: mirror.steadfastnet.com  * extras: mirror.cs.uwp.edu  * updates: mirror.centos.iad1.serverforge.org Resolving Dependencies --> Running transaction check ---> Package postfix.x86_64 2:2.10.1-9.el7 will be installed --> Finished Dependency Resolution  Dependencies Resolved  ===========================================================================================================  Package                 Arch                   Version                         Repository            Size =========================================================================================================== Installing:  postfix                 x86_64                 2:2.10.1-9.el7                  base                 2.4 M   Transaction Summary =========================================================================================================== Install  1 Package   Total download size: 2.4 M Installed size: 12 M Downloading packages: postfix-2.10.1-9.el7.x86_64.rpm                                                     | 2.4 MB  00:00:00     Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : 2:postfix-2.10.1-9.el7.x86_64                                                           1/1   Verifying  : 2:postfix-2.10.1-9.el7.x86_64                                                           1/1  Installed:   postfix.x86_64 2:2.10.1-9.el7                                                                             Complete! [root@stmail01 ~]#

[root@stmail01 ~]# yum install dovecot -y Loaded plugins: fastestmirror, ovl Loading mirror speeds from cached hostfile  * base: mirror.steadfastnet.com  * extras: mirror.cs.uwp.edu  * updates: mirror.centos.iad1.serverforge.org Resolving Dependencies --> Running transaction check ---> Package dovecot.x86_64 1:2.2.36-8.el7 will be installed --> Processing Dependency: openssl >= 0.9.7f-4 for package: 1:dovecot-2.2.36-8.el7.x86_64 --> Processing Dependency: portreserve for package: 1:dovecot-2.2.36-8.el7.x86_64 Installed:   dovecot.x86_64 1:2.2.36-8.el7                                                                             Dependency Installed:   clucene-core.x86_64 0:2.3.3.4-11.el7    make.x86_64 1:3.82-24.el7    openssl.x86_64 1:1.0.2k-21.el7_9     portreserve.x86_64 0:0.0.5-11.el7      Complete! [root@stmail01 ~]#

3. Kindly refer to the below video for the Configuration part

4. Click on Finish & Confirm to complete the task successfully

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Happy Learning!!!!

Apart from this if you need more clarity,  I have made a  tutorial video on this, please go through and share your comments. Like and share the knowledge