Failed connection to IMAP server causes loss of data on msg move from local folder.



2 years ago
2 years ago


(Reporter: kuneiyai, Unassigned, NeedInfo)




Firefox Tracking Flags

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2 years ago
User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.85 Safari/537.36

Steps to reproduce:

Drag msg from source (Local Folders/Inbox) to destination (imap-account/Inbox). Imap server throttles connections and sometimes refuses connections. Msg is deleted from source, and never appears at destination. Data loss. thunderbird 45.2.0 linux.

Comment 1

2 years ago
Looks similar to #522675

Comment 2

2 years ago
(In reply to kuneiyai from comment #1)
> Looks similar to #522675

Perhaps. can you reproduce with same steps?
Severity: normal → critical
Component: Untriaged → Networking: IMAP
Flags: needinfo?(kuneiyai)
Keywords: dataloss
Product: Thunderbird → MailNews Core
Version: 45 Branch → 45

Comment 3

2 years ago
(In reply to Wayne Mery (:wsmwk, NI for questions) from comment #2)
> (In reply to kuneiyai from comment #1)
> > Looks similar to #522675
> Perhaps. can you reproduce with same steps?

I was probably thinking of bug 522675 comment 5 and (improved?) bug 522675 comment 7

Comment 4

2 years ago
So I tried to reproduce it as you asked, and looks like a discovered a new bug completely. Tried moving 6 msgs from my Local Folder to an IMAP folder. Switched to offline mode before it could copy. Then I quit thunderbird, and restarted it. Upon restarting, Offline mode was already disabled. 6 msgs were copied to the IMAP server, but it copied 6 copies of a single msg! The other 5 msgs were lost completely (its okay, just using test msgs).  So there is another data loss bug for you. But I think my original bug was different, possibly being triggered specifically by the IMAP server rejecting a connection because of connection rate limiting. Anyone have any idea how to duplicate that?
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