Email Deliverability Check
Check email deliverability for any domain — SPF, DKIM, DMARC, and blacklists.
Email Deliverability Check — Full Domain Audit
Email deliverability check analyzes SPF, DKIM, DMARC, MX records, reverse DNS (PTR), SMTP TLS encryption, and blacklist status — returning a score and grade for the domain.
Poor email deliverability means your emails land in spam or get rejected. Our check runs a comprehensive audit: SPF authorization, DKIM signature validation, DMARC policy enforcement, MX record health, PTR/FCrDNS verification on mail servers, STARTTLS encryption test, and blacklist reputation scan. Results are scored 0–100 with a letter grade and actionable findings.
What is Email Deliverability?
Email deliverability is the ability to successfully deliver email to the recipient's inbox rather than the spam folder or being rejected. It depends on authentication, reputation, content, and infrastructure.
Email deliverability is affected by three main categories: (1) Authentication — SPF, DKIM, and DMARC must pass and align. (2) Reputation — your sending IP and domain must not appear on blacklists. (3) Infrastructure — MX records must resolve, PTR records must match, and SMTP must support TLS. Our check covers all three simultaneously.
Understanding Your Deliverability Score
A deliverability score of 90+ means excellent configuration. 80–89 is good. 70–79 is acceptable. Below 70 indicates serious issues likely causing spam placement or rejection by major providers.
Each section contributes weighted points to the overall score: authentication (SPF, DKIM, DMARC) carries the highest weight, followed by infrastructure (MX, PTR, SMTP TLS), and reputation (blacklist status). A missing DMARC record or domain listed on Spamhaus will severely penalize the score.
Why You Need Continuous Deliverability Monitoring
DNS records can change, blacklists can add new listings, and DKIM keys can expire — all silently degrading email deliverability. Continuous monitoring catches these changes before they cause delivery failures.
Email deliverability isn't a one-time configuration. SPF includes can change when providers update their infrastructure. DKIM keys expire or get rotated. IPs can appear on blacklists overnight. DMARC reports reveal unauthorized senders you didn't know existed. Set up continuous monitoring to get alerted immediately when any factor changes.
Get a complete email deliverability audit — SPF, DKIM, DMARC, blacklists, and more in one report.
Check deliverability nowUse Cases
Email marketing managers run deliverability checks before major campaigns to ensure all authentication is in place. SaaS companies check deliverability for transactional email domains after any infrastructure change. Enterprise IT teams audit email deliverability for all company domains quarterly. MSPs use it to onboard new clients and identify existing misconfigurations.