Trusted by fast-growing teams sending at scale
Built on
Proven at scale
Drop-in API
Same API shape as Resend or Postmark. Migrate in an afternoon, not a sprint.
curl -X POST https://api.mailgrid.space/api/emails \ -H "Authorization: Bearer $MAILGRID_KEY" \ -H "Content-Type: application/json" \ -d '{ "from": "hello@yourdomain.com", "to": "user@example.com", "subject": "Order confirmed", "html": "<p>Thanks for your order!</p>" }'
import { Mailgrid } from '@mailgrid/sdk'; const mg = new Mailgrid(process.env.MAILGRID_KEY); await mg.emails.send({ from: 'hello@yourdomain.com', to: 'user@example.com', subject: 'Order confirmed', html: '<p>Thanks for your order!</p>', });
from mailgrid import Mailgrid mg = Mailgrid(api_key=os.environ["MAILGRID_KEY"]) mg.emails.send( from_="hello@yourdomain.com", to="user@example.com", subject="Order confirmed", html="<p>Thanks for your order!</p>", )
mg := mailgrid.New(os.Getenv("MAILGRID_KEY")) _, err := mg.Emails.Send(ctx, &mailgrid.SendRequest{ From: "hello@yourdomain.com", To: []string{"user@example.com"}, Subject: "Order confirmed", HTML: "<p>Thanks for your order!</p>", })
let mg = Mailgrid::new(env::var("MAILGRID_KEY")?); mg.send(SendRequest { from: "hello@yourdomain.com".into(), to: vec!["user@example.com".into()], subject: "Order confirmed".into(), html: Some("<p>Thanks for your order!</p>".into()), ..Default::default() }).await?;
Capabilities
We shipped the entire feature matrix on day one — no paywalled "Enterprise" buckets.
Idempotent single sends with bounce/complaint suppression, open + click tracking, and full event log.
100-message batch endpoint, list segmentation, RFC 8058 one-click unsubscribe headers.
HTTP-based SMTP relay endpoint. Pair with any legacy MTA sidecar for real SMTP over TCP.
Per-tenant IP pools with automated warmup. Routes traffic by email stream.
SES SNS → automatic suppression list updates. Webhooks for every lifecycle event.
Schedule sends minutes or months ahead. Smart-send computes optimal time from open patterns.
Upload once, attach by id in every send. R2-backed, 25 MB per file. No payload bloat.
Separate transactional, marketing, notifications. Independent analytics, IPs, suppressions.
Owner / admin / developer / viewer roles. Invite teammates, audit who sent what.
Summarize, Ask AI, Voice & Tone match, Knowledge base, Auto-label. Workers AI on every plan.
30-day rollups, daily metrics, structured audit log of every admin action.
Full inbound email hosting on your domain. IMAP-compatible, SES inbound routing, R2 storage. Zoho Mail pricing — without Zoho.
White-label webmail at mail.yourdomain.com. Magic-link login, compose, labels, threads — no extra config.
One-click DNS provisioning via Cloudflare API. SPF, DKIM, DMARC added automatically — verified in seconds, not hours.
MCP-native
Mailgrid speaks the Model Context Protocol natively. Drop one config block into Claude Code, Cursor, or your custom harness — every API capability becomes a first-class tool call.
No glue scripts. No prompt-engineered "you have an email API" hacks. Eighteen typed tools, full Zod validation, same source of truth as REST.
// Drop this in. That's the whole setup. { "mcpServers": { "mailgrid": { "url": "https://api.mailgrid.space/api/mcp", "headers": { "Authorization": "Bearer mb_live_..." } } } } // 18 tools your agent can call: send_email send_batch create_template generate_template verify_domain get_event_log summarize ask_ai auto_label smart_send_at create_stream upload_file invite_user register_dedicated_ip ... and 4 more
Loved by builders
From seed-stage startups to platforms sending nine figures a month.
"We cut our email bill 60% moving off SendGrid and the MCP server means our agents now send their own follow-ups. Migration took an afternoon."
"Dedicated IPs with automated warmup got us to 99.2% inbox placement. The deliverability dashboard alone is worth the switch."
"One API for transactional, bulk, SMTP and hosted inbox. We deleted three vendors and a 2,000-line glue service."
vs the competition
| Mailgrid | Resend | Postmark | ZeptoMail | |
|---|---|---|---|---|
| Price per 1k emails | $0.40 | $1.00 | $1.25 | $0.40 |
| MCP server | ✓ 18 tools | ✗ | ✗ | ✗ |
| Email streams | ✓ 3 types | ✗ | ✓ | ✓ |
| File Cache / attach-by-id | ✓ | ✗ | ✗ | ✓ |
| SMTP relay | ✓ | ✗ | ✓ | ✓ |
| Dedicated IPs (cost) | $24.95/mo | $30/mo | $50/mo | Enterprise only |
| Inbox Hosting | ✓ All plans | ✗ | ✗ | ✓ Paid only |
| Webmail Portal | ✓ White-label | ✗ | ✗ | ✓ |
| License | Proprietary | ✗ | ✗ | ✗ |
| Built-in AI | ✓ All plans | ✗ | ✗ | ✗ |
| Edge-deployed | ✓ 300+ POPs | ✓ | ✗ | ✗ |
Enterprise-ready
Compliance, encryption, and authentication built in — not sold as an "Enterprise" upsell.
Independently audited controls. Report available under NDA.
Information security management certified end to end.
EU data residency option, DPA, and full consent audit trail.
Business Associate Agreements for healthcare workloads.
TLS 1.3 in transit, AES-256 at rest on R2 and D1.
Auto-provisioned auth records, verified in seconds.
SAML/OIDC single sign-on with owner → viewer roles.
Financially-backed uptime with a public status page.
No demo call. No sales-assisted onboarding. Just a key and an endpoint.