Mail Testing ToolQuickly test your email deliverability with our Mail Tester. Send test emails to your Mail Tester email address and receive a detailed report.
Deliverability CheckMail Tester shows you exactly what receiving servers see, from authentication and spam scoring to DNS records and blacklist status.
Get a letter grade and a point-by-point breakdown covering authentication, reverse DNS, spam rules, blacklists, and header hygiene.
See the SPF evaluation trace, every DKIM signature, and whether DMARC alignment actually passed, plus the TXT records to publish when a check fails.
Check whether your sending IP and linked domains are listed on real-time blacklists, including Spamhaus, Barracuda, and Spamcop.
Read the rendered message, plain text, HTML, and headers, along with content checks, BIMI, MTA-STS, and the Received path.
FeaturesEverything behind reliable delivery at any volume: sending, verification, routing, and the analytics to see what happened, from first API call to millions a month.
Send transactional and bulk emails through reliable SMTP infrastructure built for speed, security, and deliverability.
Integrate email delivery into your applications using powerful APIs built for flexibility, scalability, and performance.
Separate transactional and marketing traffic into isolated sending streams to protect reputation and keep critical emails fast.
Receive and route incoming emails directly into your applications using flexible automation and processing workflows.
Create and deliver marketing campaigns designed to increase engagement, reach, and customer retention.
Receive real-time event notifications for deliveries, opens, and clicks for storage and automation workflows.
Monitor email performance with detailed insights, reporting tools, and actionable delivery metrics in real time.
Gain greater sending control with dedicated IPs designed for consistency, reputation, scalability, and reliability.
Build integrations faster using SDKs, code examples, and resources for modern application development.
FAQHow to run a mail test, what the report covers, and how to raise a low deliverability score.
You get a unique test address. Send one message to it from your app, SMTP server, or mail client. The report grades SPF, DKIM, DMARC, spam rules, DNS, content, blacklists, BIMI, and MTA-STS.
Yes. You can run one test at a time at no cost, with no signup required. Use it before a campaign or after a DNS change to see what receiving servers will see.
The report includes a deliverability grade, SPF and DKIM detail, DMARC alignment, the DNS records to publish, spam rules, blacklist listings, a rendered preview, inbox screenshots, attachments, content checks, BIMI, and MTA-STS.
Publish aligned SPF, DKIM, and DMARC records, remove spammy phrasing or broken HTML, and check that your sending IP is not listed. Then send another test. Our SPF and DMARC generators can help with the DNS side.
