Private messaging server (SMP)
Boerner family SimpleX relay · port 5223
Important — not a contact link
If the Android app says “Invalid Link! the text you copied is not a SimpleX link”, you pasted this into the connect to a person box. That only accepts invitation links (like https://simplex.chat/contact#…).
Server addresses go in Settings → Network & servers, not in “Paste link” / first-screen connect.
Android: first time setup
- Open SimpleX → Create profile (display name + database passphrase). You can use the default public servers for this step.
- After the main screen appears, open Settings (gear / bottom or top menu).
- Go to Network & servers (sometimes under “Advanced” / “Your servers”).
- Enable Configure SMP servers (or “Your SMP servers”) → Add server.
- Paste the full address below (or scan the QR). Save / test connection if offered.
- Also add the XFTP file server the same way under XFTP servers.
You do not need another person online first. Settings unlock after you create a profile.
SMP server address (copy this into the app)
smp://pxhjCD0d_kpOKukOTaiOSIL-fBx3lIHrxg9R8lUhfew=:eregl9JyupjGVy4B4u0wRH-glYkW5ZxhbMeCakd4@smp.boerner.top:5223
QR encodes the same address (scan only in the server-add screen, not “connect contact”):
Ports & why the address is long
- Protocol port is 5223 (included as
:5223in the address). Host HTTPS on 443 is only this info page (Caddy / Matrix stack). - The long fingerprint is required so the app can verify the real server (not a fake).
- The password only allows creating queues on this private relay.
File transfers
https://xftp.boerner.top/ — same idea for large files.