UTF7 stands for "Unicode Transformation Format 7-bit" and is a variable-length encoding scheme that can represent all possible Unicode code points.

How UTF7 works:

• Normal characters like A–Z and numbers stay the same.
• Special characters (é, ñ, emojis 😊) are converted into a safe encoded sequence using:
  • a + sign to begin the encoded block
  • a - sign to end the encoded block

This keeps the text 7-bit safe.

Example:

Café

“Cafe” stays normal, but the é becomes a UTF7 sequence.

Result:

Caf+AOk-

• AOk = encoded value for “é”
• + and - mark the encoded part

UTF7 lets you send “Café” even through a system that can only handle ASCII characters.

See: Encoding