On Sat, Dec 11, 2004 at 04:08:12PM +0100, Shot (Piotr Szotkowski) wrote: > Hello.
> Paul Hampson: > > The email address isn't important, since > > that has to be a subset of ASCII anyway. > Are the Unicode-encoded domain names > supported in (modern) browsers only? > > I can surf to http://Å.pl/ (with, e.g., Firefox) - can I send mail to > [EMAIL PROTECTED], or should I always use the [EMAIL PROTECTED] equivalent, as > the Unicode in domain names is restricted to WWW only? Good point. Others have pointed out that you can. And the flipside is, can I post to [EMAIL PROTECTED] RFC2821 says: Local-part = Dot-string / Quoted-string Quoted-string = DQUOTE *qcontent DQUOTE1 While the above definition for Local-part is relatively permissive, for maximum interoperability, a host that expects to receive mail SHOULD avoid defining mailboxes where the Local-part requires (or uses) the Quoted-string form or where the Local-part is case-sensitive. For any purposes that require generating or comparing Local-parts (e.g., to specific mailbox names), all quoted forms MUST be treated as equivalent and the sending system SHOULD transmit the form that uses the minimum quoting possible. Systems MUST NOT define mailboxes in such a way as to require the use in SMTP of non-ASCII characters (octets with the high order bit set to one) or ASCII "control characters" (decimal value 0-31 and 127). These characters MUST NOT be used in MAIL or RCPT commands or other commands that require mailbox names. == RFC2821 doesn't give more detail than that about Quoted-string, so I presume we would have to use something like the ACE encoding used for domain names. A quick google didn't show up anything concrete, so I have _no_ idea what çå would look like as an email box on my mail server. I certainly think RFC2047 would be a bad idea: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?= (I have no idea what that says, I grabbed it from the RFC. It's base64 or something quite like it) So the short answer is the email address in SMTP has to be a subset of US-ASCII, but domain names can be handled by libidn and local-parts are still in need of a standard. -- ----------------------------------------------------------- Paul "TBBle" Hampson, MCSE 7th year CompSci/Asian Studies student, ANU The Boss, Bubblesworth Pty Ltd (ABN: 51 095 284 361) [EMAIL PROTECTED] "No survivors? Then where do the stories come from I wonder?" -- Capt. Jack Sparrow, "Pirates of the Caribbean" This email is licensed to the recipient for non-commercial use, duplication and distribution. -----------------------------------------------------------
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