Email Address Validator
Check whether an email address is well-formed and whether its domain can actually receive mail: syntax plus a live MX lookup, with role and disposable-address flags. Resolved on our EU servers.
What watches these brands watches your clients too
End the manual growth tax.
Running checks by hand eats valuable agency time. Uptimeify monitors your entire client portfolio from one place: on a fair, organization-wide quota model, on secure EU infrastructure. No per-client fees, no surprises.
Frequently asked questions about Email Address Validator
Two things. First, the syntax: that the address is well-formed, with a valid local part and a real domain name. Second, deliverability at the domain level: it resolves the domain's MX records to confirm there are mail servers ready to accept mail, falling back to an A record where a domain has no MX (which RFC 5321 still allows for delivery). It also flags role-based and disposable addresses.
No, and that's deliberate. Verifying a single mailbox means opening an SMTP conversation with the mail server, which is intrusive, frequently blocked, and often gives unreliable answers because servers deliberately accept-then-bounce. This tool checks everything that can be confirmed cleanly and without contacting the mail server: valid syntax and a domain that is set up to receive mail. That catches the large majority of bad addresses: typos and dead domains.
A role-based address points to a function rather than a person: think support, info or billing inboxes. They're valid but often shared or automated, so many senders avoid adding them to marketing lists. A disposable address uses a throwaway-mail provider that deletes messages after a short time; it's a strong signal someone doesn't want to be contacted again. Both are flagged here so you can decide how to treat them.
Ready to Monitor the Mail Server Behind the Address?
A valid address is worth little if the server won't accept mail. Uptimeify checks your clients' SMTP, IMAP and POP endpoints from EU nodes and flags the outage before the first message is lost.