Offline because even if it's quick, there should be no interference from server downloads. If you go offline before you exit you should start offline next time. That remindes me I didn't tell you to go online when all was done. The .msf is just an index of your mbox (the file without an extension). It holds tags thou. My thought was this doubling could be an index-fault.

I tested ImportExportTool by exporting directly from "local folders" with all subfolders and keeping structure. Then I made a new folder within local folders, right-clicked on it and imported mbox (with subdirectories) marked all files without extensions (.sbd-directories will follow) and executed. A perfect copy of local appeared.

how to delete all at once in gmail https://productforums.google.com/forum/#!topic/gmail/BfjRPGqGepI

nope... if I delete ALL the mgs, I will also delete the msg in the inbox and outbox, that I still did not save in the local folders of Thunderbird.

I would instead need to select ONLY those that are within a certain interval, i.e. 500 to 20,000....

If you star-marked all in inbox and outbox you can then choose UNstared emails.

or you can write in search " before:2014/2/28 " or whatever date you pref.

If I find all the messages older than a certain date, then I can still only select 100 emails at a time.... sorry maybe I miss something.

After you have done the search for dates there shoud be a link:

'Select all conversations that match this search.'

click on that and it should locate even more.

see info :

• http://it.fitnyc.edu/2014/05/23/gmail-tip-filter-mail-older-than-a-certain-date/
• https://support.google.com/mail/answer/7401?hl=en
• https://support.google.com/mail/answer/7190?hl=en&cbrank=2&cbid=v7qb7bdiy3b7&ctx=cb&src=cb

https://support.google.com/mail/answer/7190?hl=en

and

https://support.google.com/mail/answer/7401?hl=en

4: Directly above your messages, you should see a sentence similar to this:

"All 20 conversations on this page are selected. Select all conversations that match this search."

Select all messages link

Use the “Select all conversations” link to select the rest of the messages if you’d like to delete all the messages at once rather than one page at a time.

MANY THANKS FOR ALL THE SUPPORT, GUYS!

I finally did it :-)

G

I am told that WDSEML files in mozmsgs folders are created when you you tick "Allow Windows Search to search messages" in Tools Options Advanced General. This creates duplicates of all messages that are then searcheable by Windows. They do not disappear when you uncheck the option they just stop being created. As you discovered they can be hell to back up. I have not yet tried deleting them so cannot confirm that there are no adverse consequences, assuming you have unchecked the Windows search option.

I suspect that if you were trying to delete duplicates in mozmsgs while allow Windows search was still ticked that it may have just kept recreating them which would explain why everything ran really slowly.

I will need the solution you eventually got for clearing out the All Mail folder on GMail but it seems to me the problem is that one problem is that when you delete an incoming email it is not deleted from All Mail. I can see no solutions offered for that problem nor whether it is a Google bug or a Thunderbird bug. I have checked my gmail and get the same problem so it does seem to be a bug that needs a solution or All Mail will just fill up again.

You were referred to this Gmail link

https://support.google.com/mail/answer/78755?hl=en

It recommends moving deleted Mail to the GMaiI/Trash folder from whence it will be deleted after 30 days and will then be deleted from All Mail - At least that's my understanding. On my system Gmail Trash is called Bin. Have you found that gets rid of deletions. Presumably nothing removes transfers to Local Folders from All Mail except a hard deletion from time to time of old mails from that folder when you are sure your Local Folders are backed up.