How to Check if an Email Address Is a Spam Trap (You Can't, Here's What Works)
You cannot check whether a given address is a spam trap. Nobody outside the mailbox providers and blocklist operators can. What you can check is your exposure. The spam trap risk checker scores the habits that put traps on a list: nine questions about where the list came from and how you maintain it, then an exposure level and a fix for each risky habit. Nothing is looked up about your list or domain, and nothing is sent anywhere.
Any tool that promises to point at the trap in your list is guessing.
Step 1: answer the nine questions
Answer each question about how the list was built and kept. Where did the addresses come from, whether you confirm sign-ups, how long contacts can go without engaging, and whether you clean before large sends.
Step 2: read the exposure level
Press Score my exposure. You get a level and the drivers: the answers that raised it, with why and what to do. The weights are a judgment of relative risk, not measured probabilities, so treat the level as a prompt. A low score means fewer of the usual causes, not no traps.
Step 3: fix the heaviest drivers
| Habit | Why it puts traps on a list | Fix |
|---|---|---|
| Bought or scraped addresses | Pristine traps only appear this way | Stop using them |
| Old contacts, never cleaned | Abandoned mailboxes get recycled into traps | See mailing an old email list |
| Sign-ups without confirmation | Typos and made-up addresses get in | Use double opt-in |
| No removal of hard bounces | Dead addresses keep getting mail | Suppress every one |
How the traps get there is covered in how spam traps get on your list.
What verification can do
A trap looks like a working mailbox from outside, so a verifier cannot find it. What verification removes is the rest of the dead weight: addresses where the result is "Mailbox not found", typo domains and "Disposable address" rows. That reduces bounces on the same list, and cleaner lists are less likely to reach recycled traps in the first place.
What this check cannot do
- It scores habits, not addresses. It cannot find or confirm spam traps.
- The weights are a judgment, not a forecast.
- A low score does not mean no traps.
- It looks up nothing about your list or domain.
Clean the list before the next send
Upload it on the verify page: the first 100 email checks are free with a Google sign-in, no card. Each address comes back valid, risky or invalid with a reason, and you can download only the safe-to-send rows. See bulk email verification, list cleaning and pricing.
Score your list now
Answer the questions in the spam trap risk checker.
Common questions
How do I know if I have spam traps on my list?
You usually find out by effects: a sudden delivery drop, a blocklist listing or complaints from a provider. The practical approach is to remove the causes: purchased lists, long-unengaged contacts and unconfirmed signups.
How do spam traps get on a list?
Two ways. Pristine traps are addresses no person ever used, so they only appear through scraping or buying lists. Recycled traps are old, abandoned mailboxes that providers turned into traps, so they appear on lists that have not been cleaned.
Does email verification remove spam traps?
Not reliably. A trap looks like a working mailbox from outside. Verification does remove invalid, typo and disposable addresses, which cuts bounces on the same list.
What happens if I hit a spam trap?
The provider or blocklist operator may treat it as evidence of poor list practice. The effect ranges from filtering to blocklist listing, depending on the operator and how often it happens.
Is my information stored by the tool?
No. Answers stay in your browser and nothing is sent to us.
Check your list before you send
Real mailbox checks over SMTP, and nothing is sent to the address. Sign in with Google and your first 100 email checks are free, no card. Plans for bigger lists are on the pricing page.