• Set up your forwarding address
• Bitwarden
  • In Firefox (similar in Chromium based browsers):
  • In the Bitwarden browser extension:
• Thunderbird

Use a new email address for every login

§Set up your forwarding address

• Set up https://duckduckgo.com/email
• Install the browser extension to generate email aliases there: https://duckduckgo.com/duckduckgo-help-pages/desktop/adding-duckduckgo-to-your-browser

§Bitwarden

§In Firefox (similar in Chromium based browsers):

• Open https://duckduckgo.com/email/settings/autofill
• Open the Web developer tools - Network tab
• Settings - More tools - Web Developer Tools - Network
• Click: Generate Private Duck Address
• In the Network tab select the first POST request
• The API key shows in the Request Headers as:
• Authorization Bearer <API_KEY>

§In the Bitwarden browser extension:

• Select Generator
• -> Username
• -> Type: Forwarded email alias
• -> Service: DuckDuckGo
• Paste the <API_KEY> to the field: API Key
• Click the Generate email button on the top.

§Thunderbird

• Set up email address formatting for replies to have your duck alias appear as a sender

• Illustrative Example (from https://addons.thunderbird.net/en-US/thunderbird/addon/duck-email-converter/):

  username = a
  your email = `b@c.com`
  output = `mailto:b_at_c.com_a@duck.com`
  

• Click Settings

• -> Add-ons and Themes

• -> Extensions

• Search for duck

• Install Duck Email Converter

• It only needs your duck email username and the address you want to send to to easily construct the email format where your duck email appears as the sender.