How clean is your email list?

List quality is more important that list size.

That’s why list hygiene is so important.

Here’s how to clean up your list and double your deliverability 👇

→ Step 1: Stop hoarding cold subs

If someone hasn’t opened in 90 days, they’re dead weight.

Remove or re-engage—don’t just keep sending.

→ Step 2: Verify before they even hit your list

I use Clearout + Fluent Forms to verify emails in real-time during sign-up.

No more fake addresses or typos dragging down your sender score.

→ Step 3: Run monthly cleanups

Use tools like Truelist to scrub your list every 30 days.

You’ll improve opens, clicks, and your sender rep.

Most founders try to add more subscribers.

Smart founders fix their foundation first.

How clean is your list, really?

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MailNinja ® is a registered trademark

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