Re: [EAI] ascii at UTF-8 and ascii at Punycode

[fujiwara at jprs.co.jp]

> From: "YAO Jiankang" <yaojk at cnnic.cn>
> > Is ASCII at UTF-8 equal to ASCII at Punycode ?
> 
> yes,  I think so.

If ASCII at Punycode is equivalent to ASCII at UTF-8 and
the SMTP server must receive both ASCII at Punycode and ASCII at UTF-8,

The thread "Add requirement for punycode conversions in downgrade"
results 2 or 3, I think.

When downgrading, If no alt-address is specified for ASCII at UTF-8,
ASCII at Punycode should be treated its alt-address.

If MUA added alt-address, the downgrading uses it.

--
Kazunori Fujiwara, JPRS <fujiwara at jprs.co.jp>

> > I prepared UTF8SMTP Email address: fujiwara@ U+65E5 U+672C U+8A9E .dnslab.jp.
> > 
> > MX resolution for fujiwara@ U+65E5 U+672C U+8A9E .dnslab.jp results
> > the same SMTP server for XN--WGV71A119E.dnslab.jp, but the SMTP server
> > can be configured to reject "fujiwara at XN--WGV71A119E.dnslab.jp".
> > 
> > I should accept "fujiwara at XN--WGV71A119E.dnslab.jp" ?
> 
> yes.
> 
> 
> > 
> > Currently, I allow both addresses.
> > 
> > Regards,
> > 
> > --
> > Kazunori Fujiwara, JPRS <fujiwara at jprs.co.jp>
> > 
> > _______________________________________________
> > IMA mailing list
> > IMA at ietf.org
> > https://www.ietf.org/mailman/listinfo/ima
> >
> 
_______________________________________________
IMA mailing list
IMA at ietf.org
https://www.ietf.org/mailman/listinfo/ima