User Help for Mozilla Thunderbird
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I would like to know if it's possible for Thunderbird to synch all the folders when checking for email instead only the inbox.
What happens is when I trow away email and I dont check the recycle bin for a week or so, it takes up to 10 seconds when I open the recycle bin. It first syncs those messages and then displays the updates version.
Would be great if TB checks every X minutes.. (where can I set anyway at what time interval TB should check for mail?)
I think it is:
Am I right?
That is the correct preference to check all folders, but, by itself, it will not cause the messages, or the headers, to be downloaded. Other than the Inbox, Thunderbird checks for new messages with the STATUS command, and updates the message counts, but does not open the folder to get the new headers.
You can set the preference mail.imap.use_status_for_biff to false to make Thunderbird open each folder and synchronise the headers each time. It does take longer than the STATUS command, but it does what you want.
Of course it takes longer but I don't mind. It only checks and downloads what's not already there, right? It doesn't download the full content of all my folders every time it checks for new e-mail, does it? (cause that would be 400 MB every minute...)
Right. Thunderbird will only download new headers in the other folders.
(There is also a hidden preference to download the new message bodies, but it ignores the 'offline' setting, and downloads the message bodies for all folders you open. If you want the bodies as well as the headers, but only for selected folders, you might want to check out the "Sync on arrival" extension. I have not used it, but it looks promising.)
What do you exactly mean with 'offline' setting? I'm not using any kind of offline-mode.
I tried to use Sync on Arrival before but it says it had to be disabled because it didn't work with my version of TB.
I think I'll download it again, see if that does what I want.
Since I'm using IMAP both on my desktop and laptop, I just want to make sure when I'm not connected to the internet with my laptop, I still have access to all my e-mails.
If you don't have any folders marked for offline mode, then you can ignore my comments. I added it, just in case you were expecting the message bodies. Without offline messages, setting 'use_status_for_biff' to false is probably all you need.
The 'Sync on Arrival' extension solves the problem a little differently. Rather than opening each folder, it watches the message counts. If any folder reports new messages, then the extension opens the folder and downloads the headers. If the folder is selected for offline use, it will also download the message bodies. (That means that, if you do manage to install the extension, you will want to change 'use_status_for_biff' back to true.)
The IMAP STATUS command reports the number of messages (total, new, unseen, etc.). When Thunderbird uses the STATUS command to check for new messages (biff), it updates the displayed numbers, but does not SELECT (open) the folder.
It is necessary to SELECT the folder to fetch the new headers, so when 'use_status_for_biff' is true, the new headers are not retrieved until you manually select the folder. In other words, it defers the overhead of synchronising until you actually look at the folder.
When you set 'use_status_for_biff' to false, Thunderbird will SELECT each folder that is checked for new mail, rather that using STATUS. Because of this, the new headers are fetched, and the folder summaries are synchronised as soon as new messages arrive.
Interesting . (I wonder how one got to know all these info, probably a lot of reading and trial and error).
I'm going to see if Synch-On-Arrival works again, if not (and if it does) I'll let you know .
Last edited by Eagle Creek on February 1st, 2008, 11:16 pm, edited 2 times in total.
You can learn a lot from the source code, and a little trial and error.
It looks like 'Sync On Arrival' has not been updated for TB 2.0. It intrigues me, so I may take a look at it this weekend to see if it needs any changes, or just a version bump.
The official page says:
If Thunderbird doesn't recognize that a folder contains unread messages try setting mail.imap.use_status_for_biff true. It causes Thunderbird to explicitly select each folder to update the message summaries, rather than using the STATUS command.
So should I set it to true, or false?
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