Could provide a set of non-standard ports on nine.testrun.org

[link2xt]

@link2xt

Using ALPN for IMAP to allow connecting over port 443 and at least read emails could be interesting.

I opened a PR adding ALPN in the core:

feat: set imap ALPN when connecting to IMAP servers

Experimental PR adding multiplexing over HTTPS port to chatmail:

Multiplex HTTPS, IMAP and SMTP on port 443