Hello, at the beginning I will say that I use a language translator.
1. I am asking for instructions on changing the e-mail address from the address https: //xxx.xxx.xx.xx: 8090 / rainloop / index.php at https://domain.me:8090/rainloop/index.php
2. I am asking for the SIEVE configuration instruction (rules and filters) in the mail client, at the moment I run the tests I get the error stream_socket_client (): unable to connect to tcp: // localhost: 4190. In the firewall settings, I have unlocked the tcp 4190 port for 0.0.0.0/0.