DOWNGRADED — DOWNGRADED

Some 8-bit characters in the email were replaced with a 7-bit safe representation (modified UTF-7) by the server. This happens if the server doesn't fully support UTF-8 for mailbox names or messages. It's an informational warning. The end-user might see slightly altered text (e.g., certain characters replaced), but as a developer there's no immediate fix unless the server is upgraded. No Riposte action can change this; it's a server limitation. Just be aware if you see odd encoding, this is why.