Hi there,
It took me several hours to solve this problems and as I did not find it in any threads easily I decided to make a new posting to help you if you have the same problem.
To fix this problem it is much easier than thought:
Go to the /include/pear/Mail folder and look for the file mime.php
At line 187 to 189 you can find the following code:
'html_charset' => 'iso-88591-1',
'text_charset' => 'iso-88591-1',
'head_charset' => 'iso-88591-1'
Go and modify this to:
'html_charset' => 'UTF-8',
'text_charset' => 'UTF-8',
'head_charset' => 'UTF-8'
That's it! In my case it works perfectly now!
Good luck!
