Alejandro Cabrera Obed: > Dear all, I live in Argentina and now we can use the ? letter in our > domain names. I have a mail system conformed with Debian Lenny / > Postfix 2.5.5-1.1. > > My question is this: > > Does Postfix 2.5.5-1.1 support IDN domain names in case I create a > @?o?o.com.ar domain ??? Or is it a problem inherent only to mail > clients like Outlook, Thunderbird, etc. ???
Mail clients must translate non-ASCII domain names into punycode (xn-mumble) format before issuing SMTP commands (MAIL FROM, RCPT TO). Wietse