Strange "From:" field when replying a ticket

RT Developers
1

Hi,

     I'm using RT 3.0.0 and I got a problem when the name of the user

who is replying the ticket has accented cracters, the requestor receive the
e-mail but get some strange caracter in “From:” field, something like this
"From:
=?UTF-8?B?IlJhZmFlbCBNw6F4aW1vIHZpYSBSVCIgPHN1cG9ydGVAZ3JhbndlYi5uZXQ+?=@my.hostname.com".
How can i fix that?

bye.

Rafael Máximo