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Email Blocklist

Always Block Known Spam Senders & Domains

Create an email blocklist to always block specific senders or domains. Email Ferret blocklist ensures known spam senders, unwanted vendors, or specific domains are never allowed through, even if they pass spam detection.

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Key Takeaway
An email blocklist (also called a blacklist or block list) permanently prevents specific senders or domains from reaching your inbox. Email Ferret's blocklist works alongside its AI detection to let you permanently block repeat offenders—individual email addresses or entire company domains—so flagged cold outreach never appears in your inbox again.

How Does Email Blocklist Work?

Always Block

Blocklisted senders or domains are always blocked, regardless of spam scoring. This ensures known spam senders are never allowed through.

Domain or Address

Block individual email addresses or entire domains. Domain-level blocks are more powerful but should be used carefully to avoid blocking legitimate emails.

Immediate Effect

Blocklist entries take effect immediately and apply to all future emails from those senders. You can add or remove entries at any time.

Learn More About Email Ferret

Email AllowlistBlock Cold EmailsGmail Filters & Labels Guide

Frequently Asked Questions About Email Blocklist

Learn how to create and manage an email blocklist

An email blocklist (also called a blacklist) is a list of senders, domains, or email addresses that should always be blocked, regardless of spam scoring. Email Ferret's blocklist ensures known spam senders, unwanted vendors, or specific domains are never allowed through, even if they might otherwise pass spam detection.

Domain-level blocks block all emails from an entire domain (e.g., @spamdomain.com blocks all emails from that domain). Address-level blocks block only a specific email address. Domain-level blocks are more powerful but should be used carefully to avoid blocking legitimate emails from the same domain.

You can add emails to your blocklist in several ways: (1) Add individual email addresses, (2) Add entire domains (e.g., @spamdomain.com), (3) Add senders from flagged emails directly from the Email Ferret dashboard. Blocklist entries take effect immediately and apply to all future emails from those senders.

Blocklisted emails receive a maximum spam score and are always blocked, regardless of other factors. This ensures known spam senders are never allowed through, even if they might otherwise pass spam detection. Blocklist entries override all other spam scoring.

Yes, Email Ferret supports multiple Gmail accounts, and each account has its own blocklist. This allows you to maintain separate blocklists for personal and business Gmail accounts, each tailored to your specific needs.

Ready to Block Spam?

Create Your Email Blocklist

Never receive emails from known spam senders. Email Ferret blocklist ensures unwanted senders and domains are always blocked. Try it free—no credit card required.

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✨ No credit card required • 14-day free trial • $5/month after

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