How my AI Video app became profitable after blocking disposable emails

Reading time: approx. 8 minutes

I’m a startup founder building an AI-powered video generation product.

Like many SaaS companies, I launched with a simple growth strategy:

• a free trial
• trial credits for new users
• subscriptions for long-term customers

At first, everything looked great. Sign-ups were growing, users were generating videos, and subscriptions started coming in. But very quickly, I ran into a serious problem.

Every new account received free credits to generate videos. AI video generation is expensive:

• API costs
• Storage

After a few weeks, my infrastructure costs started exploding. At first, I assumed this was normal growth. But the numbers didn’t add up:

• sign-ups were increasing
• costs were increasing even faster
• revenue was not catching up

The business was heading toward losses.

After investigating, I discovered the truth: These weren’t real users. They were abusers creating unlimited free accounts. The pattern was always the same:

1. Create an account
2. Use all free trial credits
3. Register again
4. Repeat endlessly

And the key detail: Most of them were signing up with disposable temporary email addresses.

This abuse created a dangerous situation: I was paying for video generation, while abusers were consuming resources for free. The result:

• Trial credits became a financial leak
• Infrastructure costs skyrocketed
• The product became unprofitable

Without solving this, the business couldn’t scale.

To stop the abuse, I needed to block disposable email registrations. That’s when I integrated the Verify Email API. Verify Email helps detect:

• Disposable or temporary emails
• Invalid emails

Now, every time a user signs up, I verify the email instantly.

The signup flow became simple:

• If the email is disposable → block registration
• If the email is real → allow trial access

Abusers were stopped at the door.

After integrating Verify Email:

• Fake trial sign-ups dropped dramatically
• Infrastructure costs went down
• Trial abuse was eliminated
• Subscriptions finally covered expenses
• The business became profitable

This one change protected my entire product.

If your SaaS offers:

• Free trials
• Free credits
• Freemium access

then disposable email abuse is a real threat. Blocking temporary emails is one of the fastest ways to reduce costs and protect revenue.

Verify-email.app helps you:

• Block disposable emails
• Prevent trial abuse
• Reduce infrastructure costs
• Grow profitably

It’s simple to integrate and includes a free tier.