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Doerp 2026-03-11 08:28:02 +00:00 committed by GitHub
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@ -1090,6 +1090,14 @@ categories:
Verifies DKIM signatures and shows the result in the e-mail header, in order to help
spot spoofed emails (which do not come from the domain that they claim to).
- name: Captchainbox
url: https://captchainbox.com
icon: https://captchainbox.com/logo-512.png
openSource: false
description: >-
CAPTCHA-based email filtering for Gmail. Known contacts pass through,
unknown senders verify via a simple CAPTCHA. Verified senders are auto-whitelisted.
notableMentions: >
If you are using ProtonMail, then the [ProtonMail Bridge](https://protonmail.com/bridge/thunderbird)
enables you to sync & backup your emails to your own desktop mail client.