Type an email address. We check its syntax, whether the domain hands out throwaway addresses, whether it receives mail at all, and how its SPF and DMARC records look. No sign-up, and nothing is sent.
Whether the address is well formed, whether its domain gives out throwaway addresses, and whether the domain has mail servers at all. Any of those failing means mail to this address will not arrive.
The only way to know a mailbox exists is to ask the receiving server. Google and Microsoft, which host a large share of business mail, refuse to answer, and a server that accepts every address answers yes to everything. A checker that says "valid" for those is guessing. This one tells you what it can prove.
Eveil finds your prospects and their contacts, checks every address before it sends, and writes each email from your own mailbox, one at a time, like a person would.
Start free