Inboxlogy Free Tools
Free Email Tools
A growing set of free tools for cold email and deliverability — check your DNS, fix your SPF/DMARC, analyze headers and more. No sign-up, no cost, no catch.
Check DNS
DNS Record Checker
Instantly look up A, AAAA, MX, TXT, NS and CNAME records for any domain. Free, no sign-up.
Open tool → 📬MX Lookup
Find the mail servers (MX records) for any domain, in priority order, and detect the email provider. Free.
Open tool → 🛡️SPF Checker
Check your domain's SPF record: syntax, the all-mechanism, and the critical 10-DNS-lookup limit. Free.
Open tool → ✅DMARC Checker
Check your DMARC record and understand your policy, alignment and reporting setup in plain English. Free.
Open tool →Generate
SPF Generator
Build a valid SPF record for Google, Microsoft 365, SendGrid, Mailgun and more — with a live DNS-lookup count. Free.
Open tool → ⚙️DMARC Generator
Create a valid DMARC record with the right policy, reporting address and strict alignment. Free, no sign-up.
Open tool → ✍️Email Signature Builder
Design a clean, professional HTML email signature and copy it straight into Gmail or Outlook. Free.
Open tool →Test & Score
Done checking? Start sending that actually lands.
Inboxlogy gives you genuine Google & Microsoft mailboxes with dedicated US & EU IPs, automated SPF/DKIM/DMARC and 100% ownership — from $2.80/mailbox.
Get started →