base64 encoded names show up incorrectly

[Gautam Iyer <gautam@xxxxxxxxxxxxxxxxx>]

Hi All,

I've been a long time mutt user, and *love* it. Thanks to the devs for a
wonderful email client :). After about 6 years of heavy usage, I finally
came across a problem which I could not find the solution to using
Google + man pages. Hopefully someone on this list knows the answer:

I found the following strange behaviour with base64 encoding: I receive
a message with the following headers:

    From: "=?UTF-8?B?4K6u4K654K6+4K6y4K6V4K+N4K634K6u4K6/IOCuruCvgQ==?= 
=?UTF-8?B?4K6w4K6z4K6/4K6V4K+N4K6w4K+B4K634K+N4K6j4K6p4K+N?=" <xxx@xxxxxxxxx>
    Content-Type: text/plain; charset=UTF-8; format=flowed
    Content-Transfer-Encoding: base64

The message content is base64 encoded, which mutt translates correctly.
However the sender of the message always shows up as "????????? ???????"

Is there something wrong with the sender's client, or is this an issue
with mutt. If it's because of faulty headers, and not mutt's fault, then
does someone know a way to fix via procmail / etc.?

Thanks in advance,

GI

-- 
Practice safe eating; always use condiments.