Free Tools
Free tools for cold email deliverability
Check your setup before you launch a campaign. Built by REInbox for real estate wholesalers and investors running cold email.
Email Deliverability Checker
Check your domain's SPF, DMARC, MX, and blacklist status free. See exactly what's blocking your cold email from landing in the inbox.
Cold Email Infrastructure Calculator
Enter your target daily send volume and get the domains, mailboxes, and warmup ramp schedule you need.