Email security tool privacy ratings
Tools that check or improve the privacy of email.
3 email security tools are rated against 4 public criteria, and 3 have enough evidence for a letter grade.
Open-source email security tools only · Criteria for this category · Suggest an addition · Markdown
| Name | Grade | Score | Data | Open source | No trackers or telemetry | No ads or data sales | Independent audit |
|---|---|---|---|---|---|---|---|
Thunderbird add-on that verifies DKIM signatures and shows the result in the message header, to help spot spoofed email. |
Grade B | 80 | 100% | Yes | Yes | Yes | No |
Tests whether your mail client "reads" emails before you open them, and what analytics, read-receipts or other tracking data it leaks back to the sender. |
Grade B | 80 | 100% | Yes | Yes | Yes | No |
Local-first desktop app that scans an inbox to list the services holding your data, then helps unsubscribe and send data deletion requests. |
Grade B | 80 | 100% | Yes | Yes | Yes | No |
Questions
What is the most private option among email security tools?
No pick has been made yet. The table above is sorted by score, based on public evidence.
How are email security tools rated?
Each entry answers 4 questions: open source, no trackers or telemetry, no ads or data sales and independent audit. Answers need links to evidence. See the full criteria.