Dead Simple Email is an email API built for AI agents that lets developers create inboxes programmatically, send and receive messages, and get real-time webhook notifications. It provides pre-configured SPF/DKIM/DMARC, automatic threading, IMAP/SMTP access, and SDKs/integrations for AI agent frameworks, avoiding Gmail account suspensions, OAuth complexity, and per-seat mailbox pricing.
What it's for
Features 20
- AI agent guardrails and rate limiting
- Attachment text extraction (PDF, XLSX, DOCX, CSV)
- Automatic email threading
- Blocklists and domain restrictions
- Bounce classification and automatic suppression
- Bulk inbox provisioning via API
- Clean reply parsing (quoted text and signatures stripped)
- Create email inboxes via API
- Custom domain support with auto DNS verification
- Dashboard for visual inbox management
- Draft approval workflows
- Multi-tenant pods with scoped API keys
- Open and click tracking
- Pre-configured SPF, DKIM, and DMARC
- Python, TypeScript, and Go SDKs
- Real-time delivery via WebSocket and SSE streaming
- Real-time webhook notifications with HMAC signing
- Send and receive emails programmatically
- Standard IMAP and SMTP access on every inbox
- Verification-code / OTP / magic-link extraction (wait_for_email, get_verification_code)
At a glance
Integrations
Resources
Pricing
Enterprise plan is custom-priced (unlimited inboxes/emails). Overages on paid plans: $0.40 per extra inbox/mo and $0.20 per 1,000 extra emails.
For experiments, prototypes, and early integrations.
5 inboxes, 5,000 emails/month, 500 MB storage
For solo builders and small product teams.
15 inboxes, 15,000 emails/month, 1 GB storage, 1 custom domain
For teams shipping agent products in production. Most Popular.
100 inboxes, 100,000 emails/month, 5 GB storage, 5 custom domains
For large agent deployments and high-volume sending.
500 inboxes, 500,000 emails/month, 10 GB storage, 25 custom domains
Custom pricing; contact us.
Unlimited inboxes and emails
Similar apps
OpenMailEmail API for AI agents. Give any agent its own email address with one API call.PriceFrom €9/moTry freeFree planRuns onWebFeatures17
SendmuxThe Email API for AI AgentsPriceUsage-basedTry freeFree planRuns onWebFeatures19
Bird EmailThe email API for developers who ship the rest of the message too.Price$15–$1039/moTry freeFree planRuns onWebFeatures18
SESMetricEmail that always lands. Campaigns your AI agent runs.Price$83.25–$99/moTry freeFree planRuns onWebFeatures19
CloudMailinThe email API for developers.Price$25–$1799/moTry freeFree planRuns onWebFeatures19
MailgunTransactional Email API Service For DevelopersPrice$15–$90/moTry freeFree planRuns onWebFeatures18