SPF Checker
Analyze SPF records, DNS lookup budget, and Microsoft 365 authorization for outbound cold email domains.
Domain input
Related resources
Use the matching guide and solution pages to understand where this tool fits in the wider outbound infrastructure workflow.
Outlook cold email setup guide
How to set up Outlook-based cold email infrastructure correctly from the start.
Microsoft 365 mailboxes for cold outreach
Managed M365 mailboxes for B2B cold outreach — enterprise infrastructure, DNS configured, fulfilled within 24 hours.
Cold email infrastructure guide
Domains, mailboxes, routing, DNS, and deliverability — a complete cold email infrastructure reference.