97 lines
4.1 KiB
Plaintext
97 lines
4.1 KiB
Plaintext
MBOX-Line: From brong at fastmail.fm Wed Jul 22 17:07:32 2015
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To: imap-protocol@u.washington.edu
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From: Bron Gondwana <brong@fastmail.fm>
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Date: Fri Jun 8 12:34:55 2018
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Subject: [Imap-protocol] Strange behavior with Gmail IMAP when using
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CONDSTORE extension
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In-Reply-To: <CAO3aFYuDxSFaVU_O8dVwpO_40_pdY3h-b2B8pPDyfm_=9MG1oQ@mail.gmail.com>
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References: <CAO3aFYuDxSFaVU_O8dVwpO_40_pdY3h-b2B8pPDyfm_=9MG1oQ@mail.gmail.com>
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Message-ID: <1437610052.3135783.330762257.59E54221@webmail.messagingengine.com>
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On Thu, Jul 23, 2015, at 09:54, Michael Grinich wrote:
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> Our team has seen the following strange behavior when making requests
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> to the Gmail IMAP server. I wanted to share this with the list and
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> Brandon to see if folks have ideas for mitigating or fixing the issue,
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> or whether this is actually a bug in Gmail's IMAP implementation.
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>
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> Here's the log:
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>
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> T2 SELECT "[Gmail]/All Mail"
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> * FLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $Junk
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> $NotJunk $NotPhishing $Phishing NotJunk)
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> * OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen
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> $Forwarded $Junk $NotJunk $NotPhishing $Phishing NotJunk \*)] Flags
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> permitted.
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> * OK [UIDVALIDITY 11] UIDs valid.
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> * 126069 EXISTS
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> * 0 RECENT
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> * OK [UIDNEXT 208199] Predicted next UID.
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> * OK [HIGHESTMODSEQ 14064776] T2 OK [READ-WRITE] [Gmail]/All Mail
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> selected. (Success) *T3 UID FETCH 207722 (FLAGS) (CHANGEDSINCE
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> 14055062)* ** OK [HIGHESTMODSEQ 14064776]* ** 125605 FETCH (UID
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> 207722 MODSEQ (14063567) FLAGS (\Answered \Seen))* T3 OK Success *T4
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> UID FETCH 1:* (FLAGS) (CHANGEDSINCE 14055062)*
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> * 125938 FETCH (UID 208058 MODSEQ (14060020) FLAGS ())
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> * 125939 FETCH (UID 208059 MODSEQ (14060011) FLAGS ())
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> * 125940 FETCH (UID 208060 MODSEQ (14060028) FLAGS ())
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> * 125941 FETCH (UID 208061 MODSEQ (14060000) FLAGS ())
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> * 125942 FETCH (UID 208062 MODSEQ (14060036) FLAGS ())
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> * 125943 FETCH (UID 208063 MODSEQ (14060000) FLAGS ())
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> * 125944 FETCH (UID 208064 MODSEQ (14060000) FLAGS ())
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> * 125945 FETCH (UID 208065 MODSEQ (14060003) FLAGS ())
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> * 125946 FETCH (UID 208066 MODSEQ (14060037) FLAGS ())
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> * 125947 FETCH (UID 208067 MODSEQ (14060043) FLAGS ())
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> * 125948 FETCH (UID 208068 MODSEQ (14060000) FLAGS ())
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> * 125949 FETCH (UID 208069 MODSEQ (14060045) FLAGS ())
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> * 125950 FETCH (UID 208070 MODSEQ (14060000) FLAGS ())
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> * 125951 FETCH (UID 208071 MODSEQ (14060025) FLAGS ())
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> * 125952 FETCH (UID 208072 MODSEQ (14060011) FLAGS ())
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> * 125953 FETCH (UID 208073 MODSEQ (14060045) FLAGS ())
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> * 125954 FETCH (UID 208074 MODSEQ (14060044) FLAGS ())
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> * 125955 FETCH (UID 208075 MODSEQ (14060003) FLAGS ())
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> * 125956 FETCH (UID 208076 MODSEQ (14060040) FLAGS ())
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> * 125957 FETCH (UID 208077 MODSEQ (14060011) FLAGS ())
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> * 125958 FETCH (UID 208078 MODSEQ (14060044) FLAGS ())
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> * 125959 FETCH (UID 208079 MODSEQ (14060025) FLAGS ())
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> * 125960 FETCH (UID 208080 MODSEQ (14060044) FLAGS ())
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> * 125961 FETCH (UID 208081 MODSEQ (14060036) FLAGS ())
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> * 125962 FETCH (UID 208082 MODSEQ (14060037) FLAGS ())
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> * 125963 FETCH (UID 208083 MODSEQ (14060003) FLAGS ())
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> * 125964 FETCH (UID 208084 MODSEQ (14060037) FLAGS ()) T4 OK Success
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>
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>
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> Why would "UID FETCH 207722 (FLAGS) (CHANGEDSINCE 14055062)" return
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> message 207722, but "UID FETCH 1:* (FLAGS) (CHANGEDSINCE 14055062)"
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> wouldn't? Is there any way to catch all messages?
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>
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> I was able to reproduce this exact IMAP exchange multiple times, so
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> there's no way the email could have been expunged within the two
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> FETCHes.
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>
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> We've seen CONDSTORE-related issues happen on multiple Gmail accounts.
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> The only workaround we found is "SEARCH MODSEQ", which didn't have
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> this problem in tests. However, it was very slow on Gmail.
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What to do you get for either:
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T5 FETCH 1:* (UID FLAGS) (CHANGEDSINCE 14055062)
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or
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T6 UID FETCH 1:208198 (FLAGS) (CHANGEDSINCE 14055062)
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That might show if there's anything interesting happening with '*'.
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Your exchange definitely reads like incorrect CONDSTORE logic to my
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slightly tired eyes...
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Bron.
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--
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? Bron Gondwana
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? brong@fastmail.fm
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