A Guerrilla Mail alternative with a modern API and a cleaner inbox.
Guerrilla Mail has been around forever and does more than most temp-mail services (it can send, not just receive). The UX, however, has not moved since the 2010s. If you want the same disposable-mail core with a modern UI, a proper REST API and EU hosting — mailiy is the contemporary choice.
Guerrilla Mail is one of the oldest names in disposable email. It has a few features most competitors lack — most notably outbound sending and a configurable inbox username — and a loyal user base because of that. The flip side is a UI that still looks and behaves like 2012, an API that exists but is awkward to integrate, and a hosting story that is hard to verify for EU-based compliance.
mailiy keeps the core disposable-mail experience clean: open the page, get an inbox in under two seconds, no signup, no account. On top of that you get a modern dark-themed interface, a REST API with bearer-token auth (free tier 500 calls/month), GDPR-grade hosting in Frankfurt, and the @mailiy.de alias domain on Premium for sites that block more well-known temp-mail providers.
mailiy vs Guerrilla Mail
Same disposable-mail core, modern stack around it.
Four reasons people switch from Guerrilla Mail.
A UI from this decade
Dark-by-default, accessible keyboard navigation, mobile-responsive, no clutter. Guerrilla Mail still looks and behaves like a 2010s web tool — which is charming until you actually need to scan an inbox quickly or hand the URL to a non-technical colleague.
A modern REST API
Bearer-token auth in the Authorization header, JSON responses, predictable rate limits per tier, and a free tier of 500 calls per month for CI use. Guerrilla Mail has an API too, but it is older, session-based, and harder to integrate cleanly into Playwright or Cypress suites.
Hosting you can put in a compliance document
"Frankfurt under GDPR" is a one-line answer for your B2B compliance team. mailiy is a German Kleinunternehmer hosting in the EU exclusively, no third-country data transfers. Guerrilla Mail does not publish a clear hosting region, which makes any data-processing-agreement conversation harder.
A less-blocked alias domain
Guerrilla Mail uses several rotating subdomains, most of which are by now on every public blocklist. mailiy Premium gives you @mailiy.de — a separate TLD that is less aggressively targeted. Pro lets you bring your own custom domain for the hard cases.
Where Guerrilla Mail is still ahead
If you specifically need outbound sending on the free tier — replying from a temp address back to whoever contacted you, for example — Guerrilla Mail handles that natively without an account. mailiy supports replies, but only on Premium and Pro. Guerrilla Mail also has a longer track record and more aggressive scrambling for the inbox username, which some users prefer for stronger pseudonymity.
How to switch
Open mailiy.com and generate. There is no account to move, no settings to export. If you were using Guerrilla Mail purely for receiving signups and codes, mailiy Free covers that. If you need the longer lifetime, the alias domain or the API, Premium is €2.99/mo billed yearly. Pro is €4.99/mo for custom domains and 1000 parallel mailboxes.
Switching FAQ
Modern disposable email, with the API on the free tier
Generate a disposable address in under two seconds. Dark-themed inbox, REST API on Free, EU hosting, ad-free on Premium.
Generate an address