Free email tools
by Reloop
Zero signup required. Validate addresses, inspect DNS auth records, score deliverability, and preview templates.
DNS Lookup & Record Analyzer
Query A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, and PTR records with live DNS provider detection and deliverability health checks.
Can Anyone Spoof My Domain?
Instant yes/no answer on whether Gmail, Yahoo, and Outlook will deliver unauthorized spoofed emails using your domain.
Who Sends Email From This Domain?
Identify every email service provider (e.g. Google, Amazon SES, SendGrid, Mailchimp) authorized in DNS to send email for a domain, and inspect inbound mailbox routing.
Domain Age & Warmup Checker
Check domain registration age via authoritative RDAP and evaluate newly registered domain (NRD) spam filter risks before sending email.
Lookalike Domain Watch & Phish Scanner
Discover registered domain twins and typosquats that look like your brand, and check if they have active mail servers configured to send email.
Email Spam Words Checker
Scan email subject lines, copy, and link density in real time to calculate spam risk and reach the primary inbox.
IP & Domain DNS Blocklist Checker
Look up a sending IP or domain name against 42 public DNS blocklists (35 IP lists, 7 domain URI lists). Failed queries are errors, not clean.
Temp & Disposable Email Checker
Check syntax, known disposable providers, role prefixes, and MX records before an address hits your database. We do not probe the mailbox.
Free Email Validator
Check email deliverability health instantly. Verify syntax, disposable domains, role addresses, and active MX records for single addresses or upload up to 1,000 emails via CSV.
Email Deliverability Tester
Send a test email to get a full 0–10 score and diagnostic report: SPF, DKIM, DMARC alignment, DNSBL blacklists, Rspamd spam filters, MIME structure, and link reachability.
SPF, DKIM & DMARC Checker
Verify email authentication records for your domain. Ensure SPF, DKIM, and DMARC are configured correctly.
BIMI Checker
Look up default._bimi, validate the HTTPS SVG logo and optional VMC, and confirm DMARC is at quarantine or reject.
Email HTML Editor
Paste React Email or raw HTML, inspect it on a canvas, and keep source in sync. No account, save, or send.
Ready for an email platform built for scale?
Send transactional & marketing emails with high deliverability, drop-in SDKs, and deep observability. Free forever to get started.