EvilMail vs Guerrilla Mail
A fair look at two temp-mail services: one that can send, and one built around a modern API.
Guerrilla Mail is a long-running free, no-signup disposable inbox that has been around since roughly 2007. It gives you a scrambled address on its own domains with no registration, and it is supported by ads. Unusually for a temp-mail service, it can also send email, not just receive it, and it exposes an older API for programmatic access. Its real strengths are a long, proven track record and that outbound-sending capability that most disposable services do not offer.
EvilMail vs Guerrilla Mail — feature by feature
| Feature | EvilMail | Guerrilla Mail |
|---|---|---|
| No signup to start | ✓ | ✓ |
| Free tier | ✓ | ✓ |
| Native REST APIolder API | ✓ | ◐ |
| Custom domains | ✓ | ✕ |
| Permanent / keepable addresses | ✓ | ✕ |
| Programmatic code extraction | ✓ | ✕ |
| TTL / retention control~1-hour default | ✓ | ◐ |
| Private (non-public) inboxesscrambled but guessable | ✓ | ◐ |
| Send emailGuerrilla Mail can send — most temp mail cannot | ✕ | ✓ |
Which one should you pick?
Pick Guerrilla Mail when…
If you need to actually send a message from a throwaway address, Guerrilla Mail is the better pick, since EvilMail is receive-only. It is also a solid choice when you want a well-established, free, no-signup inbox from a service with many years of history and no account required.
Pick EvilMail when…
EvilMail is the right pick when you are building automation and want a modern, native key-based REST API with dedicated OTP and regex extraction endpoints. It also fits when you need custom domains, permanent keepable mailboxes, TTL control and private inboxes rather than only scrambled addresses on the provider's own domains.
Verdict
Choose Guerrilla Mail when you need to send email from a disposable address or want a long-established free inbox; choose EvilMail when you need a modern API, custom domains, permanent mailboxes and built-in OTP extraction for receiving.
EvilMail vs Guerrilla Mail — FAQ
Q1Is EvilMail a good Guerrilla Mail alternative?−
Yes, for receiving mail. EvilMail offers an instant no-signup inbox plus a native key-based REST API, custom domains, permanent mailboxes, TTL control and OTP extraction. The one thing it does not do is send email, which Guerrilla Mail can, so it is not a drop-in replacement if outbound sending is what you need.
Q2Does Guerrilla Mail have an API?+
Yes. Guerrilla Mail exposes an API for programmatic access, though it is an older interface. EvilMail's API is a more modern, native key-based REST design with dedicated endpoints for OTP and regex extraction, which can be easier to work with for new integrations.
Q3Which is better for automated testing?+
For automated testing that only receives messages, such as verifying signup or OTP flows, EvilMail's modern REST API and native OTP/regex extraction endpoints are a strong fit. If your tests need to send email as well, Guerrilla Mail's sending capability makes it the better choice.
Q4Can EvilMail send email like Guerrilla Mail can?+
No. EvilMail is intentionally receive-only to prevent abuse, so it cannot send outbound email. Guerrilla Mail can send as well as receive, so for any workflow that requires sending from a disposable address, Guerrilla Mail is the better pick.
More comparisons
A disposable inbox — with an API behind it.
Instant no-signup inboxes for a quick verification, plus a real REST API, custom domains and permanent mailboxes when you need them. Free to start.

