How to solve Socket timed out error on emailjs-smtp-client?

Question

Node.js

Greetings fellow colleagues.
There is npm emailjs-smtp-client.
It has emailjs-tcp-socket as a dependency.

There is a project in VUE on the side, everything is assembled by webpack so that everything works in conjunction with VUE on the front.
It causes the following error in the browser:

Uncaught (in promise) TypeError: this.socket.send is not a function
at SmtpClient._send (client.js?00c3:486)
at SmtpClient._sendCommand (client.js?00c3:480)
at SmtpClient.quit (client.js ?00c3:177)
at eval (VM5894 761:276)
at
_send @ client.js?00c3:486
_sendCommand @ client.js?00c3:480
quit @ client.js?00c3:177
fn._withTask.fn._withTask @ vue .esm.js?65d7:1826
VM5894 761:269 Error: Socket timed out!
at SmtpClient._onTimeout(client.js?00c3:419)

tried setting timeouts in emailjs-smtp-client/src/client.js
const TIMEOUT_SOCKET_LOWER_BOUND = 10000
const TIMEOUT_SOCKET_MULTIPLIER = 0.1
nothing helped.

initiating mail client

options = {
                auth: {
                  user: mail.mail,
                  pass: mail.pass,
                  ca: true,
                  ignoreTLS: false,
                  requireTLS: true,
                },
              };
              client = new SmtpClient(mail.host, 587, options);
              client.onidle = () => {
                console.log('Connection has been established');
                if (alreadySending) { return; }
                alreadySending = true;
                client.useEnvelope({
                  from: mail.mail,
                  to: mail.mail,
                });
              };

Through telnet on 587 there is a connection but does not work in all browsers.
In debugger, network in browser websocket connection is empty.
At the beginning, a TypeError error occurs: this.socket.send is not a function, then when the timeout ends, an error occurs at SmtpClient._onTimeout (client.js?00c3:419).
It seems that it works for people, it doesn’t even want to connect with me.