This article explains the settings available in the Security panel of the Thunderbird OptionsPreferences window. The Security panel contains optionspreferences related to keeping you safe on the Internet.
Thunderbird includes the ability to identify and filter out junk messages. These settings help you customize how junk mail filtering behaves. For more information, see Thunderbird and Junk / Spam Messages.
- When I mark messages as junk: Junk Mail Filtering can be used to filter out any junk messages from your inbox. In some cases, you will want to mark a message as junk. Using this setting, you can determine where the message will go when you mark it as junk.
- Mark messages determined to be junk as read: With this setting enabled, Thunderbird will mark a message as read when it is marked as junk.
- Enable adaptive junk filter logging: This setting allows you to enable and disable logging of junk mail filtering, as well as view the log itself. Normally, it should not be necessary to enable logging.
E-mail Scams tab
- Tell me if the message I'm reading is a suspected email scam: A scam message contains material designed to trick you into disclosing personal information. With this setting enabled, Thunderbird will display a warning if it detects the message you are reading is a scam. For more information, see Thunderbird’s Scam Detection.
- Allow antivirus clients to quarantine individual incoming messages: By default, Thunderbird stores mail folders locally in single files (For example, there's a file called Inbox). If your antivirus software detects a virus in a new incoming message, it will quarantine the entire inbox file. With this setting enabled, incoming messages will be stored in a temporary folder on your computer, before being moved to your Thunderbird inbox. That way, your antivirus software will only quarantine the single message.
The Thunderbird Password Manager securely stores the usernames and passwords you use to access servers, so you don't have to re-enter them when you check for new messages. Click Password Manager - Remember, delete and change passwords in Thunderbird.to view, edit, or remove the usernames and passwords that Thunderbird has saved for you. For more information, see
- Use a master password: If you share a computer, and don't want others to see your stored passwords, enable this setting to make Thunderbird require you to enter a master password in order to view or use the passwords you've told Thunderbird to remember. To edit or remove your master password, click Protect your Thunderbird passwords with a Master Password. . For more information, see