the very best Android XMPP Client "Conversations" is not able to connect to 5222 XMPP Port. I am running very latest Docker Version.
Conversations does cost a fee @PlayStore, but it can be downloaded4fre at https://f-droid.org/ (Open Source Apps)
Error Message: Incompatible Server
Error Explanation Page: https://github.com/siacs/Conversations# ... ble-server
- Code: Select all
I get 'Incompatible Server'
As regular user you should be picking a different server. The server you selected is probably insecure and/or very old.
If you are a server administrator you should make sure that your server provides STARTTLS. XMPP over TLS (on a different port) is not sufficient.
On rare occasions this error message might also be caused by a server not providing a login (SASL) mechanism that Conversations is able to handle. Conversations supports SCRAM-SHA1, PLAIN, EXTERNAL (client certs) and DIGEST-MD5.
@onlyoffice developers, can you check that? Is there an old XMPP Version running for OnlyOffice? Or does it not support STARTTLS?
Thanks in advance!