Disposable email database
Is mail.tm a disposable email?
Quick answer
mail.tm is operated by Mail.tm, a disposable / temporary email service. Signups using this domain are almost always throwaway. Block at signup if your product depends on long-term email reachability.
About Mail.tm
Mail.tm is a disposable email service with a distinctly developer-facing twist: it exposes a free, documented REST API for creating temporary accounts and reading mail programmatically. That makes it a favorite building block for signup-automation scripts and bot frameworks.
What it’s typically used for
Automated account creation at scale — the API means a script can mint an inbox, register on your product, and fetch the confirmation link without a human touching a browser.
Should you block mail.tm in your signup form?
Block at signup. The programmatic inbox API makes this one of the most automation-friendly disposable services, so addresses here are disproportionately likely to be bots rather than humans.
How to detect mail.tm in code
You don’t need to maintain a hand-rolled list. Vouchley returns a disposable flag (and the rest of the signup score) on every check:
curl -X POST https://api.vouchley.getrevlio.com/v1/verify \
-H "Authorization: Bearer vch_live_..." \
-H "Content-Type: application/json" \
-d '{
"email": "anyone@mail.tm",
"ip_address": "203.0.113.10"
}'
# Response:
# {
# "score": 12,
# "recommendation": "block",
# "email": { "disposable": true, "valid": true },
# ...
# }Block disposable signups in one API call.
Vouchley keeps the disposable list current — including alias domains and new providers — so you never have to maintain it yourself.