- Home
- Email Parsing Software
- Dewmail
Dewmail
What it is
Dewmail is an open-source email parsing microservice that turns messages received for a domain into JSON-encoded HTTP POST requests for an existing API. Example data includes the message body, sender, subject, timestamp, recipient, sender IP, and SPF result. Its routing example maps an address such as [email protected] to a POST path on api.example.com. The hosted setup uses MX records pointing to in1.dewmail.org and in2.dewmail.org, and the service requires no signup, credit card, or installation. Dewmail can also run on your own hardware or inside your network. The Go project is available under the MIT License. Self-hosted settings can enable HTTPS, restrict accepted domains, and configure SPF checking or an SPF-pass requirement. HTTP, domain checking, and SPF options are disabled by default. Self-hosting requires port 25 to remain open through the firewall.
For and against
For
- Hosted service needs no signup or installation
- Converts email details into JSON webhook requests
- Open-source Go project under the MIT License
- Configurable HTTPS, SPF, and domain restrictions
- Supports self-hosting inside your network
Against
- HTTP is the default transport for forwarded requests
- SPF and domain checks are disabled by default
- Self-hosting requires firewall access to port 25
The verdict
Dewmail offers a focused bridge from incoming email to API endpoints. Its hosted option is quick to start, while self-hosting provides configurable transport, SPF, and domain controls.
Who it suits
Dewmail suits developers adding an email frontend to an existing API, whether they prefer a hosted service or self-hosted deployment.
On the record
- Address routing
- The setup example maps an address such as [email protected] to a POST at /foo/bar on api.example.com.dewmail.org · read 9 Oct 2026
- Configuration
- The source README documents options for valid-domain checks, the API route, HTTPS POST, and SPF checks.github.com · read 9 Oct 2026
- Demo privacy
- The demo page says displayed emails are obfuscated so that no one gets spammed.dewmail.org · read 9 Oct 2026
- Domain restriction
- Self-hosted configuration can restrict accepted mail to specified valid domains; domain checking is off by default.github.com · read 4 Oct 2026
- Email fields
- The example parsed request includes the message body, sender, subject, timestamp, recipient, sender IP, and SPF result.dewmail.org · read 9 Oct 2026
- Email forwarding
- It receives email for a domain and sends a JSON-encoded POST request to the API.dewmail.org · read 4 Oct 2026
- Hosted service access
- The homepage says the hosted service requires no signup, credit card, or installation.dewmail.org · read 4 Oct 2026
- Intended users
- The maker describes Dewmail as a way to add an email frontend to an existing API.dewmail.org · read 9 Oct 2026
- Language
- The project repository says Dewmail is written in Go.github.com · read 4 Oct 2026
- Maker
- The site credits Stephen Parker as Dewmail's maker.dewmail.org · read 4 Oct 2026
- No account required
- The maker says the hosted service requires no signup or credit card.dewmail.org · read 9 Oct 2026
- Operational requirement
- The self-hosting instructions say port 25 must be open through the firewall.github.com · read 9 Oct 2026
- Parsed fields
- Its example JSON includes the message body, sender, subject, timestamp, recipient, sender IP, and SPF result.dewmail.org · read 4 Oct 2026
- Port requirement
- The self-hosting instructions say port 25 must not be blocked by the firewall.github.com · read 4 Oct 2026
- Product
- Dewmail is an open-source email parsing microservice for HTTP APIs.dewmail.org · read 4 Oct 2026
- Recipient routing
- The setup example maps [email protected] to a POST at api.example.com/foo/bar.dewmail.org · read 4 Oct 2026
- Security option
- Self-hosted configuration can use HTTPS for POST requests; the repository lists HTTP as the default.github.com · read 4 Oct 2026
- Self-hosting
- Dewmail is open source under the MIT License and can be hosted on your own hardware or inside your network.dewmail.org · read 9 Oct 2026
