Set up a mail server on Linux

part 1 - https://www.linuxbabe.com/mail-server/setup-basic-postfix-mail-sever-ubuntu-14-04

part 2 - https://www.linuxbabe.com/mail-server/secure-email-server-ubuntu-postfix-dovecot

part 3 - https://www.linuxbabe.com/mail-server/postfixadmin-ubuntu

part 4 - https://www.linuxbabe.com/mail-server/setting-up-dkim-and-spf

part 5 - https://www.linuxbabe.com/mail-server/create-dmarc-record

part 6 - https://www.linuxbabe.com/mail-server/how-to-stop-your-emails-being-marked-as-spam

Install Roundcube Webmail on Ubuntu - https://www.linuxbabe.com/ubuntu/install-roundcube-webmail-ubuntu-20-04-apache-nginx

Multiple domains with PostfixAdmin -https://www.linuxbabe.com/mail-server/host-multiple-mail-domains-in-postfixadmin

SPF and DKIM tester - https://www.mail-tester.com

DMARC Analyzer - https://www.dmarcanalyzer.com