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Domain deliverability health check

Scan your sending domain for authentication gaps, DNS errors, and reputation issues. Get a scored report with fix priorities.

What It Does

Run a complete domain health audit in seconds. Our scanner checks 50+ deliverability factors including SPF/DKIM/DMARC authentication, blacklist presence, MX configuration, and DNS health. You get a 0-100 score plus a priority-ranked fix list. Every check is logged so you can track improvements over time.

Why It Matters

Inbox placement = revenue. If your authentication is broken or you're blacklisted, your emails vanish into spam—wasting leads and burning sender reputation. Most teams don't discover these issues until campaigns already failed. This scanner catches problems early, before they cost you deals.

Key Features

  • Instant scoring: 0-100 deliverability grade
  • Full authentication audit (SPF + DKIM + DMARC)
  • Real-time blacklist checks across major DNSBLs
  • MX record validation with provider identification
  • Risk-level flagging (Critical, Warning, Pass)
  • Downloadable PDF report
  • Fix recommendations ranked by impact

Common Issues Detected

  • Authentication failures (missing SPF, broken DKIM, no DMARC)
  • Blacklist appearances on major RBLs
  • DNS misconfigurations slowing delivery
  • Overly permissive SPF policies
  • DMARC policies set to "none" (monitoring only)
  • MX records pointing to wrong servers

Best Practices

  • Scan before launching any new domain
  • Re-check weekly during active campaigns
  • Fix critical issues within 24 hours
  • Target 90+ score before scaling volume
  • Save reports to track monthly progress
  • Scan after changing email providers

How To Use

  • Input your sending domain
  • Run the health scan (takes ~10 seconds)
  • Review your 0-100 deliverability score
  • Check each category: Authentication, Blacklists, DNS
  • Start with "Critical" fixes first
  • Re-scan to verify improvements
ANALYSIS RESULTS

-

10
of 10
Deliverability Score
Risk: Low
Risk Level:
Low
Excellent email security configuration with minimal risk of delivery issues.
SPF
Configured
DKIM
Configured
DMARC
Configured
MX
-
Blacklist
-

DNS Records Analysis

SPF Record
Active
Specifies which mail servers are authorized to send email on behalf of your domain
-
DKIM Configuration
Active
Digital signature that verifies email authenticity
-
DMARC Policy
Active
Tells receivers what to do with emails that fail authentication
-

We’ve got you covered

Are domains included in the package, or do I need to buy them myself?

 You have 2 options on ScaledMail. You can purchase domains via ScaledMail and either use right away...or age them for use later. Aged domains have quite a few deliverability benefits! You can also use domains that you already own elsewhere on another registrar like GoDaddy or NameCheap. Our team can set up the DNS records for those domains for you and create your inboxes for sending!

Do I still need to warm up with ScaledMail accounts?

Both yes and no. While many users start sending emails right away, we’ve seen better results when accounts are warmed up for two weeks. We recommend warming up your accounts before sending.

Can I start sending from day one without warming up?

Yes, you can start sending 2 emails per day per ScaledMail account without warming up. However, we strongly recommend warming up your accounts for the best results.

Can I use domains I’ve previously used, or do I need new ones?

Yes, you can use existing domains if they aren’t damaged. That said, we recommend purchasing fresh domains since they generally perform better.

Why do we use 49 users per domain with Microsoft accounts?

This approach balances volume and safety. By sending just 2–5 emails per day per inbox, we rely on more inboxes per domain to increase overall capacity. This setup outperforms the traditional 2–3 inboxes per domain. While some competitors use 99+ inboxes per domain, this burns domains faster. We’ve found 49 inboxes to be the perfect balance.

Does ScaledMail offer Google and Microsoft accounts?

Yes, we do. We provide both Google and Microsoft accounts to ensure a diversified and stable cold email infrastructure.

How many emails can I send per ScaledMail Microsoft and Google account?

. Microsoft: Up to 15 emails/day per microsoft account (including warm-up)
.Google: Up to 25 emails/day per google account.

How does ScaledMail’s deliverability compare to other providers?

ScaledMail offers best-in-class deliverability, thanks to our advanced setup techniques and the reliability of Microsoft infrastructure.

Are the inboxes hosted on shared or private infrastructure?

Each customer is assigned separate and isolated tenants, so the infrastructure is not shared. Additionally, Microsoft rotates the tenant IP every 15 days for added security and reliability.

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