Disposable email database
Is proton.me a disposable email?
Quick answer
proton.me is operated by Proton Mail, a legitimate free email provider. Do not block — these users are real and represent a large fraction of healthy B2C and small-business signups.
About Proton Mail
Proton Mail is a privacy-focused email provider operated by Proton AG, based in Switzerland. End-to-end encryption is the core differentiator. Free and paid tiers are both legitimate, long-lived inboxes.
Operating since 2014.
What it’s typically used for
Privacy-conscious personal email and small-business communication. Common among developers, journalists, and EU/Swiss users.
Other domains operated by Proton Mail
The same service runs additional alias domains. Block these alongside the main domain — otherwise users will simply switch to an alias to bypass your filter.
- protonmail.com
- pm.me
Should you block proton.me in your signup form?
Do not block @proton.me signups. They are legitimate users — many of whom are exactly the technical, security-aware buyers most B2B SaaS products want.
What you should do for Proton Mail signups: score them through your normal verification flow, watch for the same alias tricks (dot-variations,+tags), and keep the same disposable + IP checks running.
How to detect proton.me 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@proton.me",
"ip_address": "203.0.113.10"
}'
# Response:
# {
# "score": 78,
# "recommendation": "approve",
# "email": { "disposable": false, "valid": true },
# ...
# }Related services
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.