Is Your Email Leaking Data? How to Check Email Reputation

The Trust Score of the Internet

Every email address has a reputation. Just like a credit score, this reputation determines whether your emails land in the inbox or the spam folder—and whether receiving servers trust you. But email reputation isn't just for marketers; it's a critical security metric.

Why Email Reputation Matters

1. For Businesses: A poor domain reputation means your legitimate emails get blocked.
2. For Security: Attackers often use low-reputation or newly created emails for phishing. If you receive an email from an address with a "bad" score, it's a red flag.

Factors Influencing Reputation

• Blacklists: Is the sending IP or domain on a known spam list?
• Volume Spikes: Sending 10,000 emails suddenly looks suspicious.
• Authentication: Lack of SPF, DKIM, or DMARC records makes spoofing easy.

How to Check Email Threats

Before you click a link or reply to a suspicious message:

1. Verify the Source: Use our tools to check the domain of the sender.
2. Look for Spoofing: Attackers often use "cousin domains" (e.g., support@paypa1.com).
3. Scan for Breaches: Has this email been involved in known data leaks?

Protecting Your Own Reputation

• Authenticate: Set up SPF, DKIM, and DMARC.
• Clean Your Lists: Remove inactive users to keep engagement high.
• Monitor: Regularly check your domain's health to ensure no one is spoofing your brand.

Email is the #1 entry point for cyberattacks. Treating email reputation seriously is your first line of defense.