Email Spam Checker and Spam Score Tester

Free Email Spam Checker: How the Test Works

This email spam checker works like a real mailbox. You get a one-off test address, send your email to it from your usual sending tool, and the page runs an email spam test on what arrives: SPF, DKIM and DMARC, SpamAssassin rules, blacklist status, content and header checks. The result is a score from 0 to 10 for that exact message and sending setup.

A spam tester for email should test the whole send, not just the text, because authentication and sender IP reputation belong to the sender rather than the draft. Some email spam checker tools score only pasted text. This one scores a message that was actually delivered, so a broken SPF record or a listed IP shows up in the result.

Email Spam Test Free of Charge: What You Get

It is an email spam checker tool free of charge, with no account to create, so you can use it as a free email spam checker for one draft, a free spam check on a new sending domain, or a free spam test before a launch. Spam email testing is most useful before the send, while you can still change the copy, the template or the DNS.

How to Check Email for Spam Before You Send

1. Press Generate Test Address above to get a unique address that stays valid for 30 minutes.
2. Send the spam check email you want to test from the tool you really send with, such as Klaviyo, Mailchimp or SendGrid. Testing from the real sending setup lets you check email spam signals that belong to the sender, such as authentication and IP reputation.
3. Wait on this page. Results appear on their own, usually within 15 to 30 seconds after the email arrives.
4. Open each category, fix the checks marked Fail or Warn, then send another test so the email spam check confirms the score moved.

To check an email for spam here, you send the message itself rather than pasting its text. Use it to test email for spam on a single message, to run a mail spam check on a new sending domain, or as a spam check for email templates before a big send. Your spam check mail is just your normal email sent to the generated address. Teams also use it to check mail for spam after changing ESP, DNS or sending domain, and the report shows where to check spam email triggers first: the category that lost the most points. The 0 to 10 score is the quickest way to check email if spam filters are likely to catch it.

What Inbox Providers Check Before Delivering Your Email

How Spam Scoring Works

Check Email for Spam List: What to Verify Before Every Send

Use the six score categories as your spam check list before each campaign, and repeat the email spam list check whenever you change a template, an ESP or a sending domain.

• Authentication: SPF, DKIM and DMARC are published and passing for the sending domain.
• SpamAssassin: the content score stays below the level where mail is typically filtered (above 5).
• Blacklists: check email spam list status for your sending IP. This category works as a spam reputation checker across the major DNSBLs.
• Content: no all-caps subject lines, no link shorteners, and HTML sent with a plain-text alternative.
• Headers: List-Unsubscribe, Message-ID and Date are present and correct.
• Server: reverse DNS, HELO identity and MX records are set.

Every failed check comes with a fix recommendation, so you can fix email spam issues in the order of the points they cost. To read the headers of a message that already landed in spam, use the email header analyzer, and to check the records behind a failed authentication result, use the SPF, DKIM and DMARC record checkers. The guide to how email spam filters work explains the logic behind each category.