Email sending services
Plunk privacy rating
Open-source email platform for transactional email, campaigns and automations, hosted in the EU or self-hosted with Docker.
Summary
Plunk is not graded yet: 50% of its criteria have evidence, and 60% is needed. It meets 4 of 12 criteria: open source, no trackers or telemetry, no ads or data sales and EU data location. It partly meets TLS configuration. It does not meet security headers. Still needing evidence: independent audit, transparency report, tells users about requests, message content deleted after delivery, open and click tracking off by default and encrypted delivery can be enforced. Automated tests: SSL Labs grade B and Mozilla HTTP Observatory grade D.
Not graded yet: 50% of criteria have evidence, 60% needed. How scoring works
Criteria
- Yes
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Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
The privacy policy states no Google Analytics, Meta pixel or other third-party tracking scripts are used, with only a login cookie.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Funded by per-email pricing. The privacy policy states data is never sold.
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Unknown
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
Needs evidence. Add it
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Unknown
Transparency report Weight 2 of 3
Does the provider regularly publish how many government and legal requests it receives and how it responds?
Needs evidence. Add it
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Unknown
Tells users about requests Weight 1 of 3
Does the provider promise to tell users about requests for their data, unless a court forbids it?
Needs evidence. Add it
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Unknown
Message content deleted after delivery Weight 3 of 3
Is the content of sent mail deleted once it has been delivered?
Needs evidence. Add it
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Unknown
Open and click tracking off by default Weight 2 of 3
Are open tracking pixels and click tracking links off unless the sender turns them on?
Needs evidence. Add it
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Unknown
Encrypted delivery can be enforced Weight 2 of 3
Can outbound mail be kept from being delivered without TLS?
Needs evidence. Add it
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Yes
EU data location Weight 1 of 3
Can message content and delivery logs be processed and stored only in the European Union?
The hosted service stores data with Hetzner in Germany and sends mail through Amazon SES. Self-hosting is also supported.
Automated tests
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Partial
TLS configuration Weight 2 of 3
Does the website pass the Qualys SSL Labs test with a grade of A or better?
Grade B
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No
Security headers Weight 1 of 3
Does the website pass the Mozilla HTTP Observatory test with a grade of A or better?
Grade D (30/100+)
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Not tested yet
Modern web standards Weight 1 of 3
Does the website score 90% or higher on the Internet.nl website test?
Not tested yet.