Mail.cx

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Mail.cx is ranked #4 of 33 in temporary email services on Inferse. It runs on API, Web. There is a free plan. Paid plans start at $0.82/mo.

Compared on temporary email services

Free plan: Yesmail.cx
Paid from: $4/momail.cx
Inbox lifespan: hoursmail.cx
Retention period: 1 daysmail.cx
Custom domains: Yesmail.cx
API access: Yesmail.cx
Attachments: Yesmail.cx
Inbox protection: nonemail.cx

Facts

Product: Mail.cx provides short-lived inboxes, email receiving, API access, and real-time mailbox events for developer workflows.mail.cx · 29 Sept 2026
Use cases: It is designed to help developers, QA teams, and product teams test account verification, transactional emails, notification pipelines, and application integrations.mail.cx · 29 Sept 2026
Receive only: The service receives email and does not provide email sending functionality.mail.cx · 29 Sept 2026
Inbox creation: Users can pick a username or generate one randomly, and the web inbox is available without signup.mail.cx · 29 Sept 2026
Real-time delivery: Server-sent events push new mail to the browser when it arrives.mail.cx · 29 Sept 2026
API: The REST API supports long-polling inboxes, retrieving parsed or raw email, downloading attachments, and server-sent event delivery.mail.cx · 29 Sept 2026
API limits: The API allows 10 requests per second per token; long-polling is limited to one concurrent wait per token and 10 per address.mail.cx · 29 Sept 2026
Custom domains: The API documentation describes adding a custom domain using DNS verification records.mail.cx · 29 Sept 2026
Retention: Mail is kept for 1 hour on Free and 72 hours on Pro, then automatically deleted.mail.cx · 29 Sept 2026
Security: Mail.cx says connections use TLS, passwords are hashed with bcrypt, and API tokens are stored as SHA-256 hashes.mail.cx · 29 Sept 2026
Privacy: The privacy policy says inbox content, account email, and API tokens are not sold, rented, or shared with advertisers or other third parties.mail.cx · 29 Sept 2026
Support: Support inquiries go to [email protected], and the contact page says typical response time is within two business days.mail.cx · 29 Sept 2026
Service limitation: The terms say the service does not guarantee message retention or recovery and should not be relied on for critical, sensitive, or business-essential communications.mail.cx · 29 Sept 2026
Operator: Mail.cx is operated by SICHUAN HAONI E-COMMERCE CO., LTD.mail.cx · 29 Sept 2026