Thank for answers!
> Gajim don't encrypt files before sending it
Even if it connects to server via SSL/TLS?
> FT can be encrypted if using Jingle FT (both parties need to support
> that) and no proxy is used.
How do I know when I use Jingle filetransfer and if stream is encrypted?
I found only this <https://trac.gajim.org/wiki/JingleFileTransfer>:
"Gajim will try negotiating a jingle file transfer session first, or, if
the peer does not support jingle, fall back to
<https://xmpp.org/extensions/xep-0096.html>SI file transfer".
If you mean jingle XTLS, is not does not accepted like XEP?
I've heard that exists in-band FT based on IQ requests (not SI/IBB). If
you know about it, does Gajim supports it?
P.S. If Gajim support XEP-0234 jingle file transfer, then this XEP is
not listed here <https://trac.gajim.org/wiki/GajimXEPSupport>.
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