A fast Node.js API for serving dynamic MTA-STS (Mail Transfer Agent Strict Transport Security) policies for any domain. Instantly responds to /.well-known/mta-sts.txt with customizable policy data.
nodejs javascript dns express mail server sts mta cname mailserver mta-sts mta-sts-txt gooning mail-settings mail-server-settings sexfrance mail-policy server-policy mail-express
-
Updated
Apr 28, 2026 - JavaScript