POST api.tracenow.io/email

Decide on an email before you accept it.

Send an address. Get a single reachability verdict plus every signal behind it — syntax, MX, SPF, DMARC, disposable and role detection, domain age, and a live SMTP probe — fast enough to run inline at signup.

What you can do with it

1
Stop fake signups at the door
The is_reachable verdict folds syntax, MX and disposable checks into one answer — so your form logic stays trivial.
2
Catch disposable and role inboxes
Flag throwaway domains and admin@ / billing@ role accounts that signal abuse or low intent.
3
Verify deliverability for real
A live SMTP handshake confirms the mailbox actually accepts mail, with honest catch-all handling — no silent bounces later.
4
Read domain trust at a glance
Domain age, registrar, SPF strictness and DMARC enforcement reveal freshly-registered or unauthenticated domains used in fraud.

is_reachableis_disposableis_role_accountmx.accepts_mailspf_strictdmarc_enforceddomain_age_daysregistrarsmtp.deliverablesmtp.accept_allsuspicious_tld+ more

Pick your volume. All fields included.

Drag to your monthly volume — your plan selects itself. Live SMTP probe ships on every plan.

SAVE 20%

100 calls / mo

no card required

tailored to your volume

All fields, every planNo contractStop anytime