Hot answers tagged thunderbird
Message filters. Add a filter with the rule: From || Contains || firstname.lastname@example.org Performs action: Move Message To || Foobar folder For multiple addresses, add as many of the matching rules as you want, and select "match any of the following."
Set up the account as IMAP then sort the emails by date and size. You can then easily delete the messages that fit your criteria.
Get the add-on named Copy Folder. Then go to Tools > Add Ons, then search "copy folder" and follow prompts. After restarting Thunderbird you simply right-click the folder and it will now give the option of Copy.
What about this addon called equations? See: https://addons.mozilla.org/en-US/thunderbird/addon/equations/
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