Hi there,

Your unengaged subscribers are hurting your deliverability every single day.

Every time you send to someone who never opens, your sender reputation takes a hit.

Over time that causes your emails to start landing in spam for everyone, including the people who actually want to hear from you.

A sunset flow fixes that.

How It Works:

When a subscriber hasn't engaged in 90-180 days they enter the flow.

Email 1: Re-Engagement

A simple re-engagement email.

"We've noticed you haven't opened our emails in a while. Are you still interested?"

Give them a reason to stay. A discount, early access, or simply a reminder of what they signed up for. Keep it short and genuine.

Email 2: Final Attempt (3-5 days later)

Short and personal.

"This is the last email we'll send you unless you'd like to stay."

One clear option to opt back in. Nothing else. If they don't click it, they're done.

If they don't engage after both emails, suppress them.

The Result:

A smaller, cleaner list that delivers better, converts better, and costs less to maintain on your Klaviyo bill.

A smaller engaged list will always outperform a bloated unengaged one.

Most brands resist this because they don't want to see their list size go down. But a list of 100,000 unengaged subscribers is worth less than a list of 30,000 people who actually open and buy.

Hope this helps.

Best,
Luca

Free Resources

Resources to help you scale

Use these resources to help improve your brand’s pop-ups.

  1. Deliverability Guide
    Learn how to maintain a clean, healthy list that inboxes well and keeps your Klaviyo costs under control.
    Get the Guide

  2. Email Flows Guide
    A complete breakdown of all 8 core email flows including the sunset flow and how to set it up correctly.
    Get the Guide

  3. Email Marketing AI Assistant (Custom GPT)
    A custom GPT trained on Grow Pronto's frameworks and content. Use it to generate campaign ideas, write email copy, or get answers to any email marketing question.
    Get the Custom GPT