the unicode verkrepeler(tm)
transforms your totally fine ascii text to utf-8 "special" text
$ ukrepl h
usage: ukrepl [modes]
modes:
c -- cyrillic replace
f -- fixed width
p -- replace punctuation
H -- replace with historic latin chars
h -- this message
$ echo 'Hahaha ! ( viel spaß mit deinem Legacy Mail programm)' | ./ukrepl pHcf
Наhаhа ǃ ( vіеl sраß mіt dеіnеm Lеgасy Маіlрrơgrаmm)