MBOX-Line: From spang at inboxapp.com  Wed Jul 16 19:54:19 2014
To: imap-protocol@u.washington.edu
From: Christine Spang <spang@inboxapp.com>
Date: Fri Jun  8 12:34:53 2018
Subject: [Imap-protocol] Gmail IMAP and X-GM-MSGID
In-Reply-To: <CABDm0O8yWvawiMFpT+u6YjH9Eb=2MZbsmt6dqCB3+uU-F+2x_Q@mail.gmail.com>
References: <CAMMeFX5dySxGS4XwxW=zyt_J+qxq++T=_Tt4DGVKAKhztJ8ZMA@mail.gmail.com>
	<CABDm0O8yWvawiMFpT+u6YjH9Eb=2MZbsmt6dqCB3+uU-F+2x_Q@mail.gmail.com>
Message-ID: <CAMMeFX6N-qeo4TT3BkTThrwPVwtm0czP6OjGAuTCohSMaB-zNw@mail.gmail.com>

Hi Saqib,

Thanks for the quick response.

I'm trying to maximally deduplicate Gmail messages amongst an (arbitrary)
set of Gmail accounts synchronized locally. Seems like you can deduplicate
within-account easily based on X-GM-MSGID, but cross-account deduplication
is much harder.

I'm using Gmail IMAP.

--Christine


On Wed, Jul 16, 2014 at 7:43 PM, Ali, Saqib <docbook.xml@gmail.com> wrote:

> Hello Christine,
>
> As far as I know:
> 1) X-GM-MSGID is not unique.
> 2) It is possible.
> 3) No (as far as i know)
>
> Can you tell us what you are planning to use the X-GM-MSGID for?
>
> Are you using IMAP or Gmail REST API to access the Inbox?
>
> Saqib
> http://hivemined.net
>
>
> On Wed, Jul 16, 2014 at 7:29 PM, Christine Spang <spang@inboxapp.com>
> wrote:
>
>> I know that some of the Gmail IMAP devs are on this list, so might be a
>> good place to ask a few questions about what assumptions one can make about
>> X-GM-MSGID with Gmail IMAP.
>>
>> * Is X-GM-MSGID globally unique across all of Gmail? (I assume no, given
>> sharding.)
>> * Can the same message in different accounts have the same X-GM-MSGID?
>> * Do X-GM-MSGID values associated with messages ever change? (Based on
>> the Gmail API docs about messageId, seems not?)
>>
>> --Christine
>>
>> _______________________________________________
>> Imap-protocol mailing list
>> Imap-protocol@u.washington.edu
>> http://mailman13.u.washington.edu/mailman/listinfo/imap-protocol
>>
>
>
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