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How to Turn on the Spam Filter in Mozilla Thunderbird or Netscape


Businesswoman using laptop
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Mozilla Thunderbird, Netscape and Mozilla include highly efficient spam filters using Bayesian statistical analysis. After a bit of training, its spam detection rate is stellar while the false positives are practically nonexistent.

If you don't like spam in your Mozilla Thunderbird, Netscape or Mozilla Inbox, you should really turn the junk mail filter on.

Turn on the Spam Filter in Mozilla Thunderbird

To have Mozilla Thunderbird filter junk mail for you:

  • Select Tools | Account Settings... from the menu..
  • Go to the Junk Settings category under the desired account.
  • Make sure Enable adaptive junk mail controls for this account is checked.
  • Click OK.

Turn on the Spam Filter in Mozilla or Netscape

To enable "junk mail controls" in Mozilla Thunderbird 1, Netscape or Mozilla:

  • Select Tools | Junk Mail Controls... from the menu.
  • Make sure the account you want to turn spam filtering on for is selected under Account:.
  • Now make sure Enable junk mail controls is selected.
  • Click OK.

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