Is dnsink.com a disposable email address?
dnsink.com is blocked
dnsink.com is a disposable email domain — confirmed, part of the temp-mail.org network. Listed on the IsTempMail blocklist since ; its DNS records were last re-verified on .
Block sign-ups from this domain, or let the IsTempMail API catch it, and every domain like it, automatically.
Reviewed by hand at IsTempMail; DNS signals re-verified continuously. Wrongly listed? Dispute here.
- First identified
- Last verified
- domains by this provider
- 486
- disposable domains tracked
- 144,926
Krea
How sign ups from disposable emails hurt you
Skewed analytics, email deliverability issues, excess operational cost.
Fake users in your funnel
Your CRO and Growth team will agree. Fake user sign-up skew measurements of CVR, CAC, M/DAU and basically every other user metric.
Sender reputation damage
Temporary addresses expire. When you send email to them, bounce rate will go up - and your reputation goes down.
Free account abuse
Disposable addresses are free and unlimited. Abusers create unlimited rotating accounts or start unlimited trial phases. Learn more about free account abuse.
Why dnsink.com is blocked
IsTempMail reviewers examined dnsink.com by hand and confirmed the block. temp-mail.org operates dnsink.com along with 485 other tracked domains.
Mail infrastructure
Mail servers
| Mail host | Resolves to |
|---|---|
| mail.wabblywabble.com | 142.132.166.12, 188.166.111.252 |
| mail.wallywatts.com | 116.202.9.167, 46.101.111.206 |
Blocklist status
- First identified
- Last verified
- Operated by
- temp-mail.org
- Website
- temp-mail.org
Blocked since and re-verified as recently as — this page reflects the domain’s current DNS state. How we verify domains
How to block dnsink.com
Check every address against the IsTempMail API before you create the account. One GET request, one JSON field. dnsink.com and every other temp-mail.org domain come back blocked: true.
GET https://www.istempmail.com/api/check/YOUR_TOKEN/dnsink.com
→ { "name": "dnsink.com", "blocked": true }$ curl https://www.istempmail.com/api/check/YOUR_TOKEN/dnsink.com
→ { "name": "dnsink.com", "blocked": true }const r = await fetch('https://www.istempmail.com/api/check/' + TOKEN + '/' + domain);
if ((await r.json()).blocked) reject('Please use a permanent email address');$r = json_decode(file_get_contents("https://www.istempmail.com/api/check/$token/$domain"));
if ($r->blocked) { // reject the sign-up }r = requests.get(f"https://www.istempmail.com/api/check/{TOKEN}/{domain}").json()
if r["blocked"]: raise ValueError("Please use a permanent email address")No code? Add the WordPress plugin or read the API docs.
Frequently asked questions
Should I block sign-ups from dnsink.com?
Yes. dnsink.com was blocked after manual review by IsTempMail. Rejecting its addresses at registration protects your list quality.
How do I block this domain and others like it?
Check addresses against the IsTempMail API at sign-up: it catches manually confirmed disposable domains in real time. A free tier is available — see the how-to-block section on this page.
When was dnsink.com blocked, and is this current?
It was first identified on and last re-verified on . IsTempMail re-checks blocked domains continuously, so this verdict reflects the domain’s current DNS state.
Who operates dnsink.com?
It is operated by temp-mail.org, a disposable email provider with 486 tracked domains. See the temp-mail.org provider page for the list of its domains.
Is this domain wrongly listed?
This domain was blocked after human review by IsTempMail staff. If you run this domain you can dispute the block here. Every dispute is processed by a human.
Stop checking domains by hand
One endpoint, one JSON field, 144,926 temporary email domains behind it.