happydeliver

Self-hosted email deliverability tester that scores SPF, DKIM, DMARC, BIMI, spam, and blacklist status.

Webfree

happyDeliver is a self-hosted platform for testing email deliverability, scoring outgoing messages on SPF, DKIM, DMARC, BIMI, spam-filter, and blacklist checks with an A-to-F grade. It offers a REST API, a built-in LMTP server for mail-transfer-agent integration, and support for analyzing uploaded .eml files. It's built for teams and administrators running their own mail infrastructure who need to diagnose deliverability problems.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of happydeliver - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

Claim happydeliver to unlock →

Try Matchbox with your own problem

Describe what is not working - we’ll show you whether happydeliver (or something else) actually fits.

Try a problem