AppArmor - A Mandatory Access Control (MAC) system which is a kernel (LSM) enhancement to confine programs to...
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Qubes OS - Qubes is a security-oriented, free and open-source operating system for personal computers that allows you to securely compartmentalize your digital life.Download Mirrors · Qubes R4.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
grsecurity - Role-based access control system, least privilege memory protection, chroot restriction, etc.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.