To increase XMPP security on first connection, this repository contains an XML file listing all servers supporting SASL SCRAM / EXTERNAL or something better.
This is similar to the HSTS preload list for HTTP.
Be aware that inclusion in the preload list cannot easily be undone. Servers can be removed, but it takes months for a change to reach users with a Monal update and we cannot make guarantees about other Clients. Don't request inclusion unless you're sure that you can support SCRAM on your server in the long term.