Re: [Imap-protocol] Gmail IMAP and X-GM-MSGID

Yeah, I thought about it a bit more and I don't think cross-account dedup
actually makes sense. For full message content / attachments I'm already
using content hashes to dedup the canonical store.

Thanks for the input!


On Wed, Jul 16, 2014 at 8:00 PM, Hoa V. Dinh <[email protected]>
wrote:

>  I’m not sure how much you would gain by reduplicating across accounts.
> One way you could try to de-duplicate could be to get a hash (sha1?) of
> the content of the email.
>
> --
> Hoa V. Dinh
>
> On Wednesday, July 16, 2014 at 7:54 PM, Christine Spang wrote:
>
> 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 <[email protected]> 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 <[email protected]>
> 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
>
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