First of all, sorry for my english,
If somebody sends an email to me, and the FromName field has non-ASCII characters, when I want to replay him the FromName field isn't displayed properly.
Complete example: I send an email from my gmail account (me@gmail.com) to a user of my server. The Roundcube's "sender" column ("remitente" in spanish) shows my name fine (Aarón). If I double-click on the subject, the "sender" is properly displayed again. Now, I go to the header information and see (because, for this test, I've unset in my gmail account the use of UTF-8; with UTF-8 the problem is the same):
From: =?ISO-8859-1?Q?Aar=F3n?= <me@gmail.com>
So, everything is fine... yet.
If I click on the sender name to replay me, what I see in the recipient field is:
"Aarón" <me@gmail.com>
What does it happen?