Names with non-ascii characters are not correctly displayed in the "sender" field of the emails sent via the "Share this page" feature

This is because the encoding is incorrect.

Replacing the line

#set ($sender = "$sender <noreply@$!{request.localName}>")

with

#set ($sender = "=?UTF-8?Q?$escapetool.url($sender).replace('%', '=').replace('_', '=5F').replace('+', '_')?= <noreply@$!{request.localName}>")

in shareinline.vm seems to do the trick, but it would be nice to have this fixed in the mailsender plugin or have a proper encoding function in the $escapetool.

More about the correct encoding of the sender data here: http://tools.ietf.org/html/rfc2047#section-4.2