Disposable email database
Is sharklasers.com a disposable email?
Quick answer
sharklasers.com is operated by Sharklasers, 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 Sharklasers
Sharklasers is one of several alias domains operated by Guerrilla Mail. Any address @sharklasers.com is delivered into Guerrilla Mail's public inbox infrastructure.
What it’s typically used for
Same as Guerrilla Mail — anonymous, throwaway signups. Picked when a known Guerrilla domain is already blocked.
Other domains operated by Sharklasers
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.
- guerrillamail.com
- grr.la
- spam4.me
- pokemail.net
Should you block sharklasers.com in your signup form?
Block alongside the rest of Guerrilla Mail's domains. Treating sharklasers.com as legitimate while blocking guerrillamail.com defeats the purpose.
How to detect sharklasers.com 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@sharklasers.com",
"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.