Re: Review - draft-ietf-imapapnd-appendlimit-extension-05

Hi SM,

On 16/11/2015 17:39, S Moonesamy wrote:
> Hi Naren, Jay,
>
> Alexey, thanks for reviewing the proposed text.
>
> At 08:55 16-11-2015, Jayantheesh S B wrote:
>> Kindly share your comments as well.
>>
>> This extension provides server admins with the capability to 
>> configure the maximum append limit size they will be expecting from 
>> the client. IMAP server side processing of huge attachments above the 
>> available limit can be avoided to a great extent, if this extension 
>> is supported by the IMAP client.
>
> I read the text [1] proposed by Jay.  You mentioned that there may be 
> a server-side limit for upload size which is not published to the 
> email client.  The last paragraph quoted above says that server 
> administrator can configure the maximum append limit that he/she is 
> expecting from the IMAP client.  This is already possible.  What you 
> might be trying to say is that the IMAP server can advertise the 
> maximum append size which it will allow for the IMAP client.  Both 
> sides, i.e. the IMAP server and the IMAP client, will have to support 
> this extension for the feature to work.
>
> The paragraph which Naren suggested is about convincing the server 
> side to implement this extension.  It is argued that by supporting 
> this extension, IMAP server side processing of huge attachments can be 
> avoided.
>
> How about the following:
>
>
>   1. Introduction
>
>   Several IMAP server have limitation for mail upload size which is not
>   published to the email client.  When email client APPEND a mail with
>   huge attachments, it fails due to size restriction set by the IMAP
>   server.  This results in unnecessary resource usage.  Especially in the
>   mobile device environment, appending mail with huge attachment consumes
>   device resources like device battery power and mobile data.
>
>   The IMAP APPENDLIMIT extension provides an ability to advertise the 
> maximum
>   upload size allowed by the IMAP server so that an IMAP client 
> supporting
>   this extension knows the size limitation beforehand.  By 
> implementing this
>   extension, IMAP server side processing of huge attachments above the 
> maximum
>   upload size can be avoided.

Yes, I think this read better.

>
> Regards,
> S. Moonesamy
>
> 1. http://www.ietf.org/mail-archive/web/imapext/current/msg05622.html

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