MX Record Lookup
Verify where your domain receives mail, detect provider routing, and confirm Microsoft 365 readiness.
Domain input
Related resources
Use the matching guide and solution pages to understand where this tool fits in the wider outbound infrastructure workflow.
What is a proxy domain?
What proxy domains are, how they protect your primary domain, and why serious cold emailers use them.
Cold email infrastructure guide
Domains, mailboxes, routing, DNS, and deliverability — a complete cold email infrastructure reference.
Cold email inboxes
Managed M365 inboxes for outbound teams — DNS configured, fulfilled within 24 hours.