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why wont my spam emails permanently delete?

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I delete all my spam mail and it goes to my deleted folder, i then delete all the mail in my deleted folder and the spam reappears in the spam folder.

I delete all my spam mail and it goes to my deleted folder, i then delete all the mail in my deleted folder and the spam reappears in the spam folder.

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When was the last time you compacted your folders. Read about compacting here. http://kb.mozillazine.org/Thunderbird_:_Tips_:_Compacting_Folders