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Poor deliverability means your emails land in spam or get rejected entirely. This 8-step toolkit walks you through every check that inbox providers evaluate, with free tools to test each one before you hit send.
Start with a comprehensive domain health scan to get an overview of all DNS, email authentication, and security configurations in one report.
Run Health CheckConfirm your SPF record lists all authorized sending sources and stays within the 10 DNS lookup limit. Missing or broken SPF causes inbox providers to flag your emails.
Check SPF RecordVerify that your DKIM public key is published and matches the signatures your mail server applies. DKIM proves your emails have not been tampered with in transit.
Check DKIM RecordCheck that your DMARC record aligns SPF and DKIM results and specifies a policy. Move from p=none to p=quarantine or p=reject for maximum protection.
Check DMARC PolicyScan your domain and sending IPs against major email blacklists. Even one listing can dramatically reduce deliverability across all recipients.
Run Blacklist CheckAnalyze your email content and sender reputation factors that spam filters evaluate. A score above 5.0 on SpamAssassin typically triggers filtering.
Check Spam ScoreConfirm you have multiple MX records with different priorities. If your primary mail server goes down, backup MX records ensure emails are still accepted.
Run MX LookupVerify your sending IP has a valid PTR record that resolves back to your domain. Many inbox providers reject or filter email from IPs without proper reverse DNS.
Check Reverse DNSRun through all 8 checks to ensure your emails reach the inbox. Every tool is free with no signup.
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