MailTub vs SecureTempMail

MailTub is a self-hosted disposable email service for creating temporary inboxes. New messages arrive through WebSocket updates rather than periodic polling, and each session can hold up to five inboxes with expiry choices of 1 hour, 6 hours, 24 hours, or 7 days. Users can export inboxes as an.eml ZIP or structured JSON, and the service parses MIME attachments with configurable size caps. MailTub runs as a single Go binary with SQLite and an embedded React interface, or through Docker. Its web interface supports dark, light, and system themes and can be installed as a progressive web app on mobile and desktop. It also provides a REST API, SMTP receiving, a scriptable CLI, and a Prometheus-compatible metrics endpoint. Mailbox creation is capped at 20 per IP per hour. Receiving real email requires a domain with an MX record pointing to the server, port 25 access or redirection, and a matching MAILTUB_DOMAIN setting. MailTub is free, open source, and Apache 2.0 licensed.

SecureTempMail provides disposable inboxes for sign-ups, downloads and one-off verifications without requiring an account. Users choose an inbox lifetime from 10 minutes to 24 hours, after which messages are deleted. The receive-only service cannot send email from temporary addresses. It detects verification and login codes for copying, and displays incoming HTML in a sandbox with scripts disabled to neutralize tracking pixels and malicious markup. SecureTempMail says inbound mail uses TLS and opportunistic STARTTLS, and that it does not log IP addresses against inbox activity or build advertising profiles. Its API supports inbox creation, message reading and deletion, and real-time webhooks. The Chrome extension offers per-site aliases, one-click autofill, OTP notifications and a side-panel inbox. Desktop apps are offered for Windows, Apple Silicon Macs and Linux; Intel Macs are not yet supported. The free plan lists unlimited disposable inboxes with up to 24-hour lifetimes and rotating domains, and is ad-supported. Premium costs $39 a year and includes up to 30-day retention, private domains, attachment downloads, no ads, inbox history and search, and priority delivery. The Developer plan costs $190 a year and includes 100k API requests per month, catch-all domains, REST API and webhooks, and an email support SLA.