Re: [IMAP] APPEND Command Usage

On 10 Dec 2014 17:46, "Alexey Melnikov" <[email protected]> wrote:
>
> Hi,
>
>
> On 10/12/2014 16:20, Jayantheesh S B wrote:
>>
>> Yes, I agree with your comments. Existing functionality should be broken
with this new proposal.
>>
>> But the TOOBIG response syntax does not convey the size supported by the
server
>>
>> resp-text-code =/ toobig-response-code / badurl-response-code
>> toobig-response-code = "TOOBIG"
>>
>> Reusing the TOOBIG response code with updated syntax like below solves
the issue
>>
>> toobig-response-code = " TOOBIG " [SP nz-number]
>> resp-text-code /=  toobig-response-code
>>
>> Please share your comments.
>
> Other people should weight in, but I am a bit unsure how safe is
extending already registered response codes. I can be convinced that this
is a non issue though.
>

Seems fraught with danger to me. We could always use enable and since the
problem by negotiation.

>> Regards,
>> Jay
>>
>> -----Original Message-----
>> From: Stuart Brandt [mailto:[email protected]]
>> Sent: Tuesday, December 09, 2014 8:25 PM
>> To: Jayantheesh S B; 'Alexey Melnikov'
>> Cc: '[email protected]'
>> Subject: Re: [imapext] [IMAP] APPEND Command Usage
>>
>> If I'm understanding the proposal correctly, a server that has already
implemented CATENATE and now implements APPENDLIMIT is left in an ambiguous
state whenever the limit is exceeded. If it returns [TOOBIG], then it's not
compliant with the APPENDLIMIT recommendation. If it returns [APPENDLIMIT
x] then it's returning an unexpected response to clients that have yet to
implement APPENDLIMIT, thereby "breaking"
>> existing functionality.
>>
>>
>> On 12/9/14 5:16 PM, Jayantheesh S B wrote:
>>>
>>> Hi All,
>>>
>>> Thanks for your response.
>>>
>>> New response code APPENDLIMIT will be returned as part of SELECT
response to convey per mailbox limit
>>>    and APPEND command response, if the APPENTLIMIT size is exceeded.
>>>
>>> C: t2 SELECT INBOX
>>> S: * 172 EXISTS
>>> S: * OK [APPENDLIMIT 257890] Maximum upload limit
>>> S: [...]
>>> S: t2 OK [READ-WRITE] SELECT completed
>>>
>>> C: t1 APPEND "Draft" (\SEEN \DRAFT) {98994952}
>>> S: t1 NO [APPENDLIMIT 257890] Exceeds the maximum allowed size
>>>
>>> Whereas TOOBIG response, does not covey the size restriction applied by
the server.
>>>
>>>    resp-text-code =/ toobig-response-code / badurl-response-code
>>>    toobig-response-code = "TOOBIG"
>>>
>>> We feel APPENDLIMIT response can convey per mailbox size restriction
and it can overcome the limitation of TOOBIG response.
>>>
>>> Please share your thoughts.
>>>
>>> Regards,
>>> Jay
>>
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