Sharing is a Wonderful Thing

Sometimes we have to set auto forwarding in between addresses. For example, a department head shall get all the inbound emails received by his team members. We can achieve such target using aliases of postfix. Step 1: Create an alias file including its’ database. By default there is an aliases file in the server. If not, please proceed as below. root@mail:~# touch /etc/postfix/aliases root@mail:~# postalias /etc/postfix/aliases Step 2: Open the aliases file and set necessary aliases as required. root@mail:~# vim /etc/postfix/aliases user1: user1,hod user2: user2,hod   Step 3: Update database. root@mail:~# postalias /etc/postfix/aliases This alias acts like auto BCC. In this case user1, user2 shall not get any notification of this forwarding.

Objective: Configuring a mail server using Postfix MTA, Dovecot MDA and Squirrelmail webmail. We are using the below information to configure the mail server. Domain Name: learnandgains.com Server Hostname: mail.learnandgains.com IP address: 192.168.22.30 OS: Ubuntu 20.04 LTS   Server Readiness: root@ubuntu:~# dpkg-reconfigure tzdata (Set the Geographic area: Asia, Time zone: Dhaka) root@ubuntu:~# apt install ntpdate root@ubuntu:~# ntpdate bd.pool.ntp.org root@ubuntu:~# sudo timedatectl set-ntp off root@ubuntu:~# date (To check the current date in the server)   root@ubuntu:~# vim /etc/hostname mail.learnandgains.com   root@ubuntu:~# vim /etc/hosts 192.168.22.30 mail.learnandgains.com  mail   root@ubuntu:~# apt update root@ubuntu:~# apt upgrade –y root@ubuntu:~# reboot Configuring Postfix: root@mail:~# apt install postfix root@mail:~# dpkg-reconfigure postfix Configuring Dovecot: root@mail:~# apt install dovecot-core do...