Instantly check if an email address is valid, deliverable, disposable, or a role account — with live mail-server checks.
Email verification is the process of checking whether an email address is real, correctly formatted, and able to receive messages — without sending anything to it. This free email verifier runs the same checks the professionals use: it validates the address syntax, looks up the domain's live mail servers (MX records), flags disposable and role-based addresses, and performs a best-effort SMTP mailbox probe to see whether the inbox actually exists.
Verifying addresses before you send protects your sender reputation, cuts bounce rates, blocks fake sign-ups, and keeps disposable addresses out of your list. Developers use it to validate form input; marketers use it to clean lists; anyone can use it to check a suspicious address.
Need the opposite — a throwaway address that is disposable? Grab one free on the MTempMail homepage, test your own deliverability with the Email Spam Test, or automate checks with the free temp mail API.
Paste the address into the box above and press Verify. This tool checks the format, looks up the domain's MX records, flags disposable or role addresses, and probes the mailbox over SMTP — all free, with no signup, in a few seconds.
No. Verification is done without delivering a message. The SMTP probe opens a conversation with the mail server and asks whether the mailbox would accept mail, then disconnects before any email is sent.
Some domains accept mail for every possible address. For those, a mailbox appears to exist even if it doesn't, so the result is marked risky/unknown rather than confirmed deliverable.
Yes. The verifier flags known disposable and temporary email providers, so you can block throwaway sign-ups.
Some mail servers hide mailbox existence (greylisting or anti-abuse policy), and some networks block the outbound port used for SMTP checks. In those cases the format and domain are still validated, but the exact mailbox can't be confirmed.
This page verifies one address at a time. For programmatic checks, use our developer API.