Replyz / Compare / Dead Simple Email
Replyz vs Dead Simple Email
Both give an AI agent inboxes of its own, with an API, SDKs, a CLI and an MCP server, and both pull verification codes out of email. Dead Simple Email adds IMAP and SMTP on every inbox. Replyz stores mail in the EU and has a single call that waits for the next email.
The short answer
- Choose Replyz if you want mail stored in the EU, a call that waits for the next email instead of a stream to consume, and setup built for personal agents such as OpenClaw, Hermes and Claude Code.
- Choose Dead Simple Email if your agent needs IMAP or SMTP today, or you want a free plan with no time limit.
Side by side
| Replyz | Dead Simple Email | |
|---|---|---|
| 100 inboxes | 19 € / month (planned) | $29 / month (Pro) |
| Free plan | 7-day sandbox, then a trial | 5 inboxes, 5,000 emails / month, no time limit |
| Extra inboxes | Included up to 100 | $0.40 / month each on paid plans |
| Verification codes | Built in (get_verification) | Parsed automatically |
| Wait for an email | One call that waits (wait_for_email) | Webhooks, WebSocket or SSE |
| IMAP / SMTP | Planned after launch | Included on every inbox |
| API, SDKs, CLI, MCP | Yes (clients open source, MIT) | Yes (Python, TypeScript, Go SDKs) |
| Hosting region | EU, every plan | Not stated |
| Status | Private early access | Live |
Dead Simple Email details from deadsimple.email, checked on 6 November 2026. Replyz prices are planned and may change before launch.
Where they differ
IMAP and SMTP
Dead Simple Email gives every inbox IMAP and SMTP credentials, so agents that only speak those protocols (for example the Hermes email gateway) can connect directly. Replyz offers an API, MCP and a CLI today and plans IMAP and SMTP after launch.
Waiting for email
With Replyz the agent calls wait_for_email or replyz wait and gets the next matching email, or a timeout to retry. Dead Simple Email delivers new mail through webhooks, WebSocket or SSE, which the agent or your code has to consume.
Hosting
Replyz stores mail in the EU on every plan, with a data processing agreement. Dead Simple Email's site doesn't say where data is hosted.
More options: AgentMail alternatives compared.
Frequently asked questions
Is Replyz a Dead Simple Email alternative?
Yes. Both give AI agents their own inboxes with an API, SDKs, a CLI and an MCP server, and both pull verification codes out of emails. They differ in IMAP access, how the agent waits for mail, and hosting region.
Which one has IMAP and SMTP?
Dead Simple Email includes IMAP and SMTP credentials on every inbox. Replyz plans IMAP and SMTP after launch.
Which one is cheaper for 100 inboxes?
Dead Simple Email Pro is 29 dollars a month for 100 inboxes. Replyz plans 19 euros a month for 100 inboxes; prices are final at launch.
Where is the data hosted?
Replyz stores mail in the EU on every plan. Dead Simple Email's site doesn't state a hosting region.
When is Dead Simple Email the better choice?
If your agent needs IMAP or SMTP today, or you want a free plan with no time limit, Dead Simple Email is the better pick right now. Replyz is in private early access.