1. iRedAdmin Install iRedAdmin, choose [iRedAdmin, fail2ban]. Add "ServerName" in /etc/apache2/sites-enabled/default-ssl.conf Ref: For full ref: http://www.iredmail.com/docs/index.html Attachment size: http://www.iredmail.com/docs/change.mail.attachment.size.html Disable amavis/clamav: http://www.iredmail.com/docs/completely.disable.amavisd.clamav.spamassassin.html SMTPS: http://www.iredmail.com/docs/enable.smtps.html 2. Install Rainloop. Add VirtualHost in /etc/apache2/conf-enabled/rainloop.conf User Portal: http://FQDN/ Admin Portal: http://FQDN/?admin