✉️ Email Deliverability & Authentication Tools

SPF Record Checker

Validate your domain's SPF record and identify misconfigurations that block email delivery

DKIM Record Checker

Verify your DKIM DNS record is correctly published and properly signing outgoing emails

DMARC Record Checker

Analyze your DMARC policy to ensure email authentication alignment and reporting is active

Email Authentication Analyzer

Run a full SPF + DKIM + DMARC audit on any domain and get a pass/fail scorecard

Email Blacklist Checker

Check if your IP or domain appears on 100+ email blacklists and spam databases

IP Reputation Checker

Look up the sender reputation score for any IP address across major email providers

Sender Score Lookup

Check your email sending IP's sender score (0-100) and compare against industry benchmarks

Inbox Placement Tester

Test whether your emails land in inbox, spam, or promotions tab across Gmail, Outlook, and Yahoo

Email Warm-Up Calculator

Calculate the optimal warm-up schedule for new email accounts based on daily send volume targets

Deliverability Score Checker

Get a composite deliverability score for your domain combining authentication, reputation, and blacklist status

Email Bounce Rate Calculator

Calculate your hard and soft bounce rates and benchmark against industry averages by niche

Spam Score Checker

Paste your email content and get a spam probability score with flagged trigger words

Email Header Analyzer

Parse raw email headers to trace delivery path, authentication results, and latency

MX Record Lookup

Look up MX records for any domain to verify mail server configuration and priority settings

Reverse DNS Lookup

Perform a reverse DNS (PTR) lookup on any IP to verify it resolves to your sending domain

PTR Record Checker

Verify your mail server's PTR record matches your sending domain for proper reverse DNS

SMTP Server Tester

Test SMTP connectivity by sending a test message and verifying handshake, TLS, and authentication

Email Port Checker

Check if email ports 25, 465, and 587 are open and accepting connections on your mail server

TLS Encryption Checker

Verify your mail server supports TLS encryption and check which TLS versions are enabled

Email Routing Analyzer

Trace the delivery route of an email from sender to recipient and identify routing bottlenecks

BIMI Record Checker

Validate your BIMI DNS record and verify your brand logo will display in recipient inboxes

ARC Record Checker

Check Authenticated Received Chain (ARC) headers to verify forwarded email authentication

Email Forwarding Tester

Test if email forwarding preserves SPF/DKIM/DMARC authentication through intermediary servers

Mail Server Tester

Run a comprehensive health check on any mail server including connectivity, DNS, and auth

DNS Propagation Checker

Check if your DNS changes (SPF, DKIM, MX) have propagated across global nameservers

Mail Tester

Test email deliverability by sending to a temporary inbox and analyzing spam score, headers, and rendering