Re: [Off Topic] Need review for POP3 extension mechanism

[Alexey Melnikov <[e-mail]>]

Randall Gellens wrote:

> Thanks for your comments, Alexey.
>
> At 3:27 PM -0700 7/10/98, Alexey Melnikov wrote:
>
> >PASS command is affected by LOGIN-DELAY also.
>
> Yes, this is a (minor) error and should be fixed.
>
> >I think that LOGIN-DELAY response to USER command may server as a
> >hint for attack on server.  I propose to forbid server answer "-ERR
> >[LOGIN-DELAY n]" to the USER command.
>
> It would be good to add text suggesting that servers not send
> LOGIN-DELAY in response to a USER command, and noting why, but I'm not
> sure we need to forbid it.

I think it is acceptable.

> >Last question : why authors decided to change syntax for IMPLEMENTATION from
> >IMPLEMENTATION "Shlemazle Plotz v302"
> >to
> >IMPLEMENTATION Shlemazle-Plotz-v302
>
> The POP protocol doesn't have the concept of a quoted string; responses
> are a series of space-delimited tokens.  The IMPLEMENTATION capability
> was corrected to reflect this, and text was added to point out that if
> the parameter is supposed to be a single token, to make sure there are
> no embedded spaces.  (Of course, since IMPLEMENTATION is only for
> logging, it doesn't really matter.)
>
> I don't think these corrections are serious enough for a new version of
> the draft and a new last call; they may be minor enough for the RFC
> editor to make, as provided for, or they can be corrected later.

I agree, no need for a new version of the draft.
Personally - I would like to see "Pop3 extension" draft as standard as soon as
possible.

Regards,
Alexey Melnikov
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SMTP/POP3/IMAP4/ACAP servers creation team
"ACAP Explorer" client
Imap Development Kit (my own product)

Epsylon Technologies, Russia
 http://www.demo.ru
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