Hi,

I get Strange characters after sending Newsletter from admin..

It looks as..

Newsletter and Product Notifications Manager
Please wait .. sending emails ..

Please do not interrupt this process! "m"ٶ<T;PŁ&"ĪJ3sp X"=nr3,--!/@;"َR`N-ʯ46f vy M"٦̌P?_/ i_ 8d"=3LK y4"=>3s [1c ]"ٮԢl"=RS*SR"Eh."<*-XH>@;

Customers receive email without any error..
Any idea what or where is the problem?