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Admax Hosting AB · web hosting in Sweden since 1996Updated 21 October 2026
If an incoming email is classified as spam, there is a reason for it. To find out more about why a particular message has been marked as spam, you need to check the email header. You can do this via your email client or through webmail. Open the email and select "View source" or "Show original".
In the example below, the email from Microsoft is completely harmless as the "TotalSpamWeight" is 0 or lower.
From: "Microsoft Outlook"
Sender: "Microsoft Outlook"
To:
Subject: Microsoft Outlook Test Message
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0000_01D71033.944F9920"
Message-ID: <4ed3101591bc426e8710c117d78042ad@com>
X-SmarterMail-TotalSpamWeight: 0 (Authenticated)Free tool
- Email health checkA full health check for your domain's email: MX, SPF, DKIM, DMARC, MTA-STS and BIMI all at once.
- Blacklist checkCheck whether an IP address or a domain's email servers appear on known spam blacklists.
- Email headerPaste an email header to see the path the message took, any delays, and the results for SPF, DKIM, and DMARC.