Chapter 1 of 5 ยท Intro
Video transcript
Intro
A clean list won't save a message with a problem. Here is how to test the message itself. Open the Email Deliverability Test on BillionVerify and sign in. The test is free, and it uses no credits. Click Generate test address. You get a private mailbox for this test, with its own result page.
Send a real sample
Send your real sample to this address. Use the same platform, from address, links and template you plan to use in production. Keep this page open. It checks every few seconds, and refreshes by itself once the message is analyzed. The report is ready. This private page stays available for seven days, and you can download the report as a PDF.
Read the report
This message gets a C, with a score of 91 out of 100. Six layers are scored separately. A message can do well on five and still slip on the sixth. Here, content is the lowest, at 77. Start with authentication. SPF passes for the sending domain. Both DKIM signatures pass, and so does DMARC. But the DMARC policy is still none. That policy has a cost. BIMI is skipped, because DMARC isn't at enforcement. Both spam filters score it well under their limits, and neither one classifies it as spam. The content checks show what this sample is missing. It has no unsubscribe path.
Use the findings
Work through the findings in order. Fix authentication and DNS first, then spam, content and header warnings. That test covers a message you send to it. For an email you already received, use the Email Header Analyzer. Paste the raw headers. This one is a made-up sample. It runs in your browser, so the header text isn't uploaded. Click Analyze Headers. First you get the verdicts. SPF, DKIM and DMARC all pass in this sample. Next come the key fields: from, to, subject, date and message ID. Then the delivery path, built from the Received headers. This sample has one hop.
When to use each
Run the test before a campaign. Read the headers when a delivered message needs explaining. 20 free credits every day you use your account, up to 600 a month. No credit card required. Start at billionverify.com.
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Free Email Deliverability and Inbox Placement TestEmail Deliverability Test sends one message to a private test mailbox and scores authentication, DNS, spam filters, blacklists, headers, content and placement.Try Free Email Deliverability and Inbox Placement TestMore in Deliverability Tools
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Native MCP Server integration ยท Catch-all reported separately ยท Free tier, no credit card