Email Address Validator

Three things: (1) Syntax — validates the email format against RFC 5322 rules (local part, @ symbol, domain structure). (2) MX records — performs a live DNS lookup to verify the domain has mail exchange records, meaning it can actually receive email. (3) Disposable/temporary detection — checks the domain against a list of 100+ known disposable email providers like Mailinator, TempMail, YOPmail, etc. No test email is sent — this is a DNS-based check only.

A syntactically valid email like user@typo.com may look correct but fail to deliver if the domain doesn't exist or has no mail server. MX records point to mail servers — without them, email delivery fails immediately. Checking MX records catches common errors like typos (gamil.com, yaho.com) without sending a test email. Note: some valid domains use A records instead of MX records (fallback behavior) — this tool checks for MX records specifically.

Disposable email services create temporary inboxes that expire quickly — used to sign up for services without exposing a real email. Common providers include Mailinator, TempMail, Guerrilla Mail, 10MinuteMail, YOPmail, and dozens of others. If you're running a registration form, accepting disposable emails means many accounts will have abandoned inboxes within hours, leading to failed transactional emails, poor deliverability scores, and potential abuse. This tool checks the domain against a curated list of 100+ known disposable providers.

Role addresses are email addresses that represent a function rather than a specific person — admin@, info@, support@, sales@, noreply@, etc. These are often monitored by multiple people or automated systems. They can be valid for B2B contact forms but are often used to avoid personal email exposure. If you're collecting emails for a newsletter or personal outreach, role addresses may be less desirable as they often have lower engagement rates and may not reach the intended person.

No — and this is intentional. The only way to truly verify an inbox exists is to send an email (and check for bounce) or to attempt an SMTP VRFY/RCPT TO check. SMTP verification (also called email ping) is unreliable: most modern mail servers reject VRFY commands for privacy, and many fake success responses to prevent harvesting. Additionally, performing SMTP probes would mean connecting to third-party mail servers, which raises privacy, legal, and rate-limiting concerns. DNS-based MX validation (what this tool does) is the reliable, privacy-respecting approach.