InboxVet

InboxVet is an email verification tool that tells you whether an address is real before you send to it. Every check runs in real time and covers five layers:

• Syntax: catches typos and badly formatted addresses

• Domain, MX and DNS: confirms the domain exists and has mail servers

• Disposable detection: flags throwaway inboxes from temporary-email services

• SMTP mailbox verification: asks the receiving mail server whether the mailbox exists, without sending an email

• Catch-all detection: tells you when a domain accepts every address, so a mailbox can’t be confirmed

Each address comes back as Valid, Invalid, Risky or Unknown, with a plain-English reason. When a mail server won’t give a clear answer, InboxVet says Unknown instead of guessing Invalid, so you never delete real customers by mistake.

Use it three ways:

• Free email verifier on the website: 3 full checks a day, no sign-up

• Bulk list cleaning: upload a CSV and download the results

• REST API: verify one address at sign-up, or up to 1,000 per request

Pricing is built for how people actually verify: in bursts, not every month. Credits are pay-as-you-go, never expire, and there is no subscription or auto-renewal. New accounts get 100 free credits, and packs start at $25 for 5,000 checks.

InboxVet also includes free deliverability tools: an email server and DNS test (SPF, DKIM, DMARC and more), a Spamhaus blacklist check with monitoring, and DMARC report monitoring.

We never send email to the addresses you check, and we never sell or share your data.

Verify every inbox before you hit send.