Product news
Why we built mailkube
Email is core infrastructure, and most platforms treat it as a marketing channel with an API attached. Here is what the other view forced us to build.
Email delivery, in practice
Guides, tutorials, and product news for developers who send emails.
RSS feedHow to use your logo in the From address
How BIMI puts your logo beside your sender name, what DMARC and SVG requirements gate it, and which mailbox providers need a paid certificate.
Reporting a security vulnerability to mailkube
How to report a security vulnerability to mailkube, the safe harbour that protects the research, and where we stand on the EU Cyber Resilience Act.
Send email from a serverless function
Send email from a serverless function on AWS Lambda, Google Cloud Functions, Azure Functions or Cloudflare Workers, with working code for each one.
Send email from Express, Fastify, Next.js
Send email from a Node.js server: Express and Fastify routes, Next.js App Router handlers, NestJS providers, and webhook receivers that verify.
Why we built mailkube
Email is core infrastructure, and most platforms treat it as a marketing channel with an API attached. Here is what the other view forced us to build.
SPF, DKIM and DMARC: what each proves
How the three email authentication standards work together, what each record actually proves, and where each DNS entry belongs before your first send.
Send your first email from Node.js
Send email from Node.js with the mailkube SDK. Install it, set your API key, and send a real transactional message in about four minutes.
Message tags and topics are generally available
Email message tags label any send with your own metadata, topics decide who receives it, and both break down on your sending dashboard.
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Three steps to your first send
Create an account, verify a domain, and send your first message today.