THunderBird-Message Filter not working properly

User Help for Mozilla Thunderbird
Posts: 171
Joined: February 22nd, 2005, 10:57 am

Post Posted September 21st, 2011, 3:47 am

Dear Experts

I am using TB V6.0.2 on desktop windows 7 64 bits

I have two account one gmail IMAP and other my work email (POP).

Under my gmail account I have created couple of filters (more than one) based on the below option , please see the snapshot (for one filter)


The problem is messages (sometimes, not always) don't get moved to their proper folders as they suppose to be ,,,,they stay in the inbox folder.

How can I overcome this issue ?


Note: I have been experience this issue since while on the previous TB versions


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Post Posted September 21st, 2011, 4:31 am

Do you regularly compact the message folders? Compacting is something that needs to be done regularly in any email program. We recommend weekly, but many of us do it daily. When done often enough, it can be an extremely fast process. Not doing so can lead to problems like those you are experiencing. See this about how to and why it's so important:

If you haven't been doing that before, first back up your Thunderbird Profile -- then compact all folders. If 'compacting' them (and leaving a long enough time for the process to complete) doesn't fully resolve the problem then do the following on each account:

Close Thunderbird. Find and delete all of the files with the .msf file extension in your profile folder/Mail including your Local Folders, especially if you are using the global inbox. You must have "View hidden files and folders" on and you need to set "hide extensions for known file types" off (just below View Hidden) if you are using Windows. These are your mail summary files and do not hold any messages themselves. They will be rebuilt the next time you open each folder in Thunderbird. Compact all your folders when you have completed this.

To avoid this happening again, see the tips in these articles: ... derbird%29

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