I am using Thunderbird for my gmail account, with IMAP settings. All my folders are synchronized. A very strange behavior, after all my mails are downloaded, TB3 starts downloading email again. At times saying "downloading x out of y messages" where x > y (like now downloading 19 out of 11 messages). Had the same problem in TB3 for windows so, replaced TB with Outlook-07, issue resolved. But on linux, I dont like the evolution's interface, so i have no choice but to stick to TB. Any suggestions how to TB not eat my bandwidth.
Thunderbird-3 keeps on downloading already downloaded messages again
gmailimapthunderbird
Related Solutions
Actually, I was able to successfully create a folder and a subfolder on some random account using Mail on Snow Leopard, populate them with a few messages and then export the hole structure on my Gmail account by just drag & drop.
The result is the expected messages with labels:
You first need to find someone with a mac and Mail, and then you can use Eudora Mailbox Cleaner to import from Thunderbird into Mail. I know this isn't quite straightforward, but it seems to work at least.
A Google forum post directs to Gmail's help that has this behaviour documented. ("This is a known issue, and we appreciate your patience as we work to resolve it. updated 9/19/2008")
According to another Gmail support page, Outlook Express shows by design the time you received the messages locally, not when the server got them when using POP but this shouldn't be the issue as you have Outlook and used IMAP.
There is also an MS Help & Support article about the 'incorrect receive time' issue. It might not help in your specific situation but it doesn't hurt to see it through.
And when talking about trial-and-error, does it make any difference if you import the messages to Gmail via IMAP?
Best Answer
I read on some forum, gmail uses "ALL mails" folder. Thunderbird subscription system download both the mails, so i the subscription list I unchecked the All Mails and left inbox checked. This solved mine problem, I hope that was it.