Integrations
Connect Mailgrid to 115+ platforms. Pick a category below or browse the full catalog.
Status key
Every integration in this catalog carries one of three status labels:
- ✅
- Built — Code ships with InboxOS. Drop in the adapter, set your API key, done. Fully supported with changelog tracking and SLA guarantees.
- 🔜
- Planned — Specification is complete and implementation is scheduled for the next release cycle. You can watch the Changelog or join the beta waitlist.
- 🔌
- Via no-code bridge — Works today through Zapier, Make, n8n, or Pipedream — no custom code needed. Flip a workflow on, paste your Mailgrid API key, and messages flow.
Any platform not listed here almost certainly supports SMTP. Mailgrid's SMTP relay works as a universal drop-in — see the SMTP compatibility section below for host/port/credential details.
Categories
115 integrations across 11 categories. Click any card to open the full reference.
Shopify, WooCommerce, BigCommerce, Magento, PrestaShop, Squarespace, and more. Order confirmations, shipping alerts, and win-back campaigns out of the box.
Browse →Next.js, Remix, Nuxt, SvelteKit, Astro, Laravel, Rails, Django, FastAPI, NestJS, Express, and more. First-class server-action and edge-runtime support.
Browse →TypeScript/JS, Python, Go, Ruby, PHP, Java, Rust, C#, Elixir, and Swift. All SDKs are auto-generated from the OpenAPI spec and published to their native package registries.
Browse →Native connectors on every major no-code platform. Build multi-step email workflows without writing a single line of code — triggers, filters, and conditional routing included.
Browse →Migrate from Mailchimp, SendGrid, Postmark, Resend, Brevo, Klaviyo, ActiveCampaign, MailerLite, ConvertKit, and others in minutes. Suppression lists and templates transfer automatically.
Browse →HubSpot, Salesforce, Pipedrive, Zoho CRM, Attio, Close, and Folk. Sync contact properties, log email activity, and trigger sequences from deal-stage changes.
Browse →WordPress, Ghost, Webflow, Framer, Contentful, Sanity, and Payload CMS. Newsletter sign-ups, form submissions, and content-published notifications with zero glue code.
Browse →Stripe, Paddle, LemonSqueezy, Chargebee, and Recurly. Receipts, dunning emails, subscription lifecycle notifications, and failed-payment retry sequences — all event-driven.
Browse →GitHub Actions, GitLab CI, Vercel, Cloudflare Workers, Railway, Render, Fly.io, and AWS Lambda. Deploy-time notifications, error digests, and on-call escalations.
Browse →Claude, Cursor, Windsurf, LangChain, LlamaIndex, and OpenAI Assistants. Mailgrid exposes 18 MCP tools so any agent can send, search, and manage email without custom API glue.
Browse →Mirror every send event — delivery, bounce, complaint, open, click — into your existing alerting stack. Correlate email deliverability with application health in a single pane of glass.
Browse →Connect in 5 minutes
Regardless of which platform you're integrating, the setup flow is always the same three steps.
Get your API key
Visit mailgrid.space/contact to provision a tenant and receive an mb_live_… key. Keys are scoped per tenant and can be rotated at any time from your dashboard without downtime.
Pick your platform
Choose a category from the grid above and follow the platform-specific setup guide. Each guide lists required environment variables, code samples, and a verification step.
Send your first integration email
Verify end-to-end delivery with a quick curl smoke test against the REST API:
# Replace YOUR_KEY and the to/from addresses curl -X POST https://api.mailgrid.space/v1/send \ -H "Authorization: Bearer mb_live_YOUR_KEY" \ -H "Content-Type: application/json" \ -d '{ "from": "hello@yourdomain.com", "to": "you@example.com", "subject": "Integration smoke test", "html": "<p>Mailgrid is connected. ✅</p>" }'
A 200 response with a message_id confirms your key is valid and the sending domain is verified. If you receive a 403, double-check that the from address matches a verified domain in your tenant.
SMTP compatibility
Every platform that accepts an outbound SMTP server works with Mailgrid out of the box — no SDK, no adapter, no custom code. Configure these credentials wherever your platform asks for "outbound email" or "SMTP relay":
| Setting | Value | Notes |
|---|---|---|
| Host | mail.mailgrid.space |
Resolves to Cloudflare's edge — low-latency worldwide |
| Port | 587 |
STARTTLS (recommended). Port 465 (implicit TLS) also available. |
| Encryption | STARTTLS |
TLS 1.2+ enforced. Plain-text connections are rejected. |
| Username | your-tenant-id |
Found in your dashboard under Settings → Tenant. Typically a slug like acme-corp. |
| Password | mb_live_… |
Your full API key. Treat it like a password — never commit to source control. |
| From domain | Your verified domain | The From header must match a domain you've verified in the Mailgrid dashboard. SPF and DKIM records are required. |
SMTP sends share the same per-tenant rate limits as the REST API. Burst sending over your plan's concurrency cap will queue automatically — messages are never silently dropped. See Rate limiting for token-bucket details.
Platforms confirmed working via SMTP
The following platforms have been tested with Mailgrid's SMTP relay. Any platform with standard SMTP settings should work identically.
If your platform isn't listed, open a GitHub issue with the tag integration-request. Built integrations are prioritised by upvote count. Alternatively, reach out via the contact form for enterprise integration support.