I have a client that receive mails from the website, in four languages: Italian, English, German, and Russian.
Everything is fine except Russian, and he is using Windows Live Mail.
Is there any ISO character set that can replace UTF-8 and support these languages?
Grabbing an arbitrary email message from by inbox in Windows Live Mail 2011, displays fine:
Note the prolific use of utf-8 in both the subject and the message body and the base64 encoding to avoid the message from getting mangled by email gateways.