BLOCK · disposable
boxfi.uk
Yes — boxfi.uk is a disposable email domain. It’s entry #711 of 5,440 in TrueUser’s tracked list.
What is boxfi.uk?
Addresses ending in @boxfi.uk are flagged as disposable by the disposable-email-domains project, which TrueUser mirrors. The inbox behind boxfi.uk is either anonymous, short-lived, or shared, so messages there shouldn't be treated as a real channel to a real person.
Why block it?
- →Deliverability — bounces and spam complaints from throwaway domains damage your sender reputation across all of your mail.
- →Free-tier abuse — the same person can spin up a fresh @disposable address for each new trial, multiplying your acquisition cost without producing revenue.
- →Account quality — accounts created on disposable email rarely come back; they inflate vanity metrics while skewing every product decision built on them.
Block boxfi.uk with one API call
POST the address to TrueUser’s verify endpoint. The response includes a verdict and the underlying signals so you can decide whether to block, hold for review, or accept.
# request
curl -X POST https://trueuser.dev/api/v1/verify \
-H "Authorization: Bearer $TRUEUSER_KEY" \
-H "Content-Type: application/json" \
-d '{"email":"[email protected]"}'
# response
{
"email": "[email protected]",
"verdict": "block",
"signals": { "disposable": true }
}
Related disposable domains
Neighbours of boxfi.uk in the B bucket.