Hi list.
I found a bug in powermail.1.5.3.
Mojibake occur in plain text mail.(utf-8 Japanese char)
powermail/lib/class.tx_powermail_functions_div.php
line 394:
wrong: $content = preg_replace('/\s+/', ' ', $content);
correct: $content = preg_replace('/\s\s+/', ' ', $content);