https://www.ejabberd.im/forum/25590/no-communication-other-account-xmpp en https://www.ejabberd.im/forum/25590/no-communication-other-account-xmpp#comment-67072 <p>Hi, your config seems acceptable.</p> <p>From my account at jabberes.org (which also uses ejabberd) I can connect correctly to your im.secaas.mx server (which I can see uses ejabberd). I can also connect correctly to dukgo.com (thich I see it uses Prosody).</p> <p>Maybe your problem connecting to some servers like dukgo.com is that they require some s2s encryption, but you don't have it enabled. To try that, enable starttls in s2s by adding these options to your configuration file:</p> <pre> s2s_use_starttls: optional s2s_certfile: "/somewhere/ejabberd/server.pem" </pre> Tue, 27 Sep 2016 16:10:31 +0000 badlop comment 67072 at https://www.ejabberd.im