Thunderbird
inbox filtering: keeping a clean/orderly inbox.

• Source: Thunderbird: Free Your
  Inbox.
  
  
  
  • Supporting Source: Organize
    Your Messages by Using Filters.
    
    
    
    • Message filters allow you to set up Thunderbird to organize your
      messages automatically. Each account has its own set of filters. Filters
      can move messages to folders, delete them, forward them to other email
      addresses, and more.
    
    
    • When you receive new mail - This is when Getting New Mail is
      selected (the default). Filters are applied to new mail in the inbox.
      This can occur either before Thunderbird does its assessment of the mail
      as junk, or after. If you have difficulty with filtering the message
      body, select after classification.
    
    
    • Automatically applied filters are applied only to the inbox, with
      the exception of Archive and after send filters, which apply only to the
      mails involved in the action to send or archive. Other folder types are
      not affected.
    
    
  
  
  • Supporting Source: Protect
    your Thunderbird passwords with a Primary Password.
    
    
    
    • Thunderbird can save passwords for each account, so you don't have
      to re-enter them when you check for new messages. You can view them and
      remove the ones you don't use anymore.
    
    
    • Do you want to prevent others from seeing your
      messages? If you are sharing a computer, the most secure way is
      to create a separate OS user account on the operating system for each
      person, and make sure your OS account requires a password. Thunderbird
      stores accounts, messages and password information separately for each
      operating system account.
    
    
  
  

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