Say ✌️ to Cold Emails.
Say 👋 to focus.
We don’t just stop cold emails, we flag them so their domains are hurt, immediately.

5 from 100+ installs





5 from 100+ installs
Unwavering Privacy
We don’t collect, store, or analyze your emails. Your data is your business.
Boost Productivity
Stop wasting time on unwanted emails. Cold Defense gives you back your focus and helps you get more done.
Reclaim Your Time
Spend less time managing your inbox and more time on what matters most.
Cold Defence has saved us from getting bombarded with cold emails...I cannot manage my day without it.

Tom W, CEO
So much of my day is bogged down by doing deep work. Any time I check my email, I am slowed down and lose train of thought. That's why I love Cold Defence!

Jerry S, Founder & CEO
“Cold Defense has been a game-changer for our team. We're saving hours each week, and our inboxes are finally manageable.”

Sarah M., Marketing Manager
Frequently Asked Questions
Cold Defense scans incoming emails and flags cold outreach based on domain behavior, sender reputation, and message patterns. It prevents these messages from cluttering your inbox and notifies the sender’s domain, reducing future spam attempts.
We support major email platforms including Gmail, Outlook, Yahoo Mail, and custom domain-based providers through IMAP/SMTP integration. More integrations are on the way.
No. Cold Defense is designed to distinguish between cold outreach and genuine communication. Our smart filtering ensures that important messages from clients, colleagues, or contacts still reach you.
We don’t collect, store, or analyze the content of your emails. Cold Defense runs locally and prioritizes your privacy. Your email data stays yours—secure and untouched.
Cold Defense is free to start. Pro plans begin at $20/month (billed yearly), with options for $200/year or $365 every two years. All plans come with full features and no hidden charges.
Absolutely. You can cancel your subscription at any time. If you’re on a paid plan, access will continue through your billing cycle, and you won’t be charged again.
- Privacy Policy
- Terms of services