Send from the stack you already run
Envello is a plain HTTP API with an SMTP relay next to it, so it works from anything that can make a request. Official SDKs where they help, short guides where a fetch call is simpler.
Languages and frameworks
Node.js
Plain fetch, the envello SDK or Nodemailer over SMTP, with idempotent retries.
Python
The envello SDK, a plain httpx call or smtplib over SMTP, sync or async.
Next.js
API routes and Server Actions, one fetch() call either way, plus edge vs. Node.js runtime notes.
NestJS
A dedicated EmailService and where dependency injection earns its keep.
Remix
Send from an action, not a loader, on Node or an edge runtime.
Nuxt.js
A server route using $fetch, plus runtime config and Vue component wiring.
SvelteKit
Form actions and API routes, with adapter-specific deployment notes.
Cloudflare Workers
No SDK dependency needed; a Worker's built-in fetch is the whole integration.
Deno
Built-in fetch and Deno's explicit permission model, no import surprises.
Supabase Edge Functions
A database webhook or trigger calling a Deno fetch, no extra dependency.
Django
Skip the SMTP EmailBackend for transactional sends; a plain HTTP call instead.
FastAPI
An async httpx call plus a background-task pattern so sending doesn't block the response.
Rails
Replace ActionMailer's SMTP delivery step, keep its templating.
Laravel
Swap the Mail facade's SMTP transport for a direct HTTP call.
Go
The Go SDK's current state, and the plain net/http version if you'd rather not wait on it.
ASP.NET Core
IHttpClientFactory over SmtpClient, with DI, async patterns, and IHostedService background sending.
Spring Boot
Skip JavaMail's SMTP abstraction for a direct HTTP call, with @Async sending and structured logging.
Elixir / Phoenix
Skip Bamboo's SMTP adapter for a direct HTTP call, with Task.Supervisor and Oban job queuing.
Protocols and tools
SMTP relay
Point any app that already speaks SMTP at smtp.envello.dev. No code change beyond credentials.
React Email
Render templates with React Email and send the HTML through the API.
Supabase Auth
Use Envello as Supabase Auth's custom SMTP for magic links and verification emails.
Webhooks
HMAC-signed delivered, bounced, complained, opened and clicked events to your endpoint.