rfc2047-encode-region

rfc2047-encode-region is a compiled Lisp function in `rfc2047.el'.

(rfc2047-encode-region B E &optional DONT-FOLD)

Encode words in region B to E that need encoding.
By default, the region is treated as containing RFC2822 addresses.
Dynamically bind `rfc2047-encoding-type' to change that.