(project retired) Note API (https://noteapi.com) allows you to send email and text messages (SMS) using secure 256-bit HTTPS encryption protocol. Allows individuals for free send email & text, API support: PHP, JS & jQuery, Python, NodeJS, Ruby, Java, C#, C and etc.
Postfix, Dovecot, Z-Push, Roundcube, Nextcloud, Apache SpamAssassin, Postgrey, Nginx;