[EAI] Regarding EAI-POP-05, UTF8 tag

[Joseph Yee <[e-mail]>]

Hi all,

I re-read the latest version of eai-pop (05) and I think there were  
some should be deleted text from decision of changing to single mode- 
switch.


Section 3 UTF8 Capability
- current arguments have "USER, LIST, TOP"

Since UTF8 is designed to use at authorization state only, LIST and  
TOP should remove from arguments.

Suggested arguments list:

Arguments:
   none, USER, APOP

I don't know how it should present both empty and non-empty arguments  
in RFC.  I'm suggesting that single command UTF8 (without any argument  
followed) could switch mode before authentication, hence I include  
"none" as possible argument.

For "none" scenario:
S: +OK POP3 server ready
C: UTF8
S: +OK UTF8 POP3 enabled
C: USER non-ascii-address
S: +OK hello non-ascii-address
C: PASS password
.....

I'm also thinking that "UTF8 must have argument followed" is fine too,  
but my personal thought is that if so, it applies to USER and APOP only.

Thoughts, everyone?

Regards,
Joseph