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Head-to-head · Disposable Email Services

Mail.tm vs MailTub

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Mail.tm #6 in Disposable Email Services 8.4/10 Free plan Free plan✓ 3 of 4 features Visit Mail.tm
MailTub #7 in Disposable Email Services 8.3/10 Open source ✓ 4 of 4 features Visit MailTub

Mail.tm leads on 0 checks, MailTub on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMail.tm · 8.4/10
  • Free planonly Mail.tm
  • Most featuresMailTub · 4 of 4

Mail.tm scores higher on our rubric for disposable email services: 8.4 against 8.3 out of 10; our editors rank them #6 and #7.

Mail.tm is the better fit for API developers needing SDK coverage. MailTub is the better fit for self-hosters needing configurable mailboxes.

  • Mail.tm fits best

    API developers needing SDK coverage

  • MailTub fits best

    Self-hosters needing configurable mailboxes

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Mail.tm 8.4/10 Visit ↗ MailTub 8.3/10 Visit ↗
At a glance
Editor score 8.4 8.3
Ranking #6 in Disposable Email Services #7 in Disposable Email Services
Best for API developers needing SDK coverage Self-hosters needing configurable mailboxes
Pricing model Free Free
Starting price Free Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud Self-hosted, Desktop, Mobile
Support Email, Docs Docs
Built for Solo, Small business Solo, Small business, Mid-market
Features Mail.tm 3/4 · MailTub 4/4
Custom address ✓ ✓
API access ✓ ✓
Custom domain Not checked yet ✓ (best)
Attachments supported ✓ ✓
Specs
Inbox lifetime Not checked yet Hours
Max active inboxes Not checked yet Not checked yet
Our review
Pros
  • Free API access without signup or an API key
  • Address selection, domains, messages, and attachments via API
  • Community SDKs listed for nine programming languages
  • Configurable mailbox expiry from one hour to seven days
  • REST API, CLI, WebSocket delivery, and email exports
  • Attachments, SMTP STARTTLS, admin controls, and Prometheus metrics
Cons
  • Access is API-only, with no visual inbox experience
  • Requests are limited to 8 queries per second per IP address
  • SDKs are community-built rather than presented as official libraries
  • Self-hosted deployment requires operators to manage the infrastructure
  • Mailbox expiry is limited to a maximum of seven days
  • Its narrow focus may not suit teams seeking broader email workflows
Our verdict

Mail.tm provides temporary email accounts for receiving messages without using a primary inbox. It is aimed at developers who need disposable addresses inside scripts, integrations, automated workflows, or application testing. Through its…

Read the review →

MailTub is an open-source, self-hosted disposable email service for developers, QA teams, and operators who need temporary inboxes under their own infrastructure. It runs as a single Go binary with SQLite and an embedded React interface,…

Read the review →
  1. Mail.tmDisposable Email Services 8.4Free plan
  2. MailTubDisposable Email Services 8.3Open source

Strengths and trade-offs

  • Mail.tm — where it wins

    • Free API access without signup or an API key
    • Address selection, domains, messages, and attachments via API
    • Community SDKs listed for nine programming languages

    Where it doesn't

    • Access is API-only, with no visual inbox experience
    • Requests are limited to 8 queries per second per IP address
    • SDKs are community-built rather than presented as official libraries

  • MailTub — where it wins

    • Configurable mailbox expiry from one hour to seven days
    • REST API, CLI, WebSocket delivery, and email exports
    • Attachments, SMTP STARTTLS, admin controls, and Prometheus metrics

    Where it doesn't

    • Self-hosted deployment requires operators to manage the infrastructure
    • Mailbox expiry is limited to a maximum of seven days
    • Its narrow focus may not suit teams seeking broader email workflows

More comparisons

All disposable email services comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update