10 Fixes for Emails That Miss the Inbox

Keep your emails landing and read by combining technical setup with engagement.

By James Schramko · Updated November 2025

Email Deliverability and Engagement Playbook (2025 Edition)

This playbook shows how to keep your emails landing, read and acted on. It pairs the technical setup with how people behave.

1. Authenticate Your Domain (Technical Trust)

Set up all three records on your domain:

SPF lists who may send for you.

DKIM signs each message.

DMARC tells servers what to do with fakes.

Ask your hosting or email provider to confirm these are active.

Check them every quarter, and after any platform change.

2. Maintain a Strong Sender Reputation

• Send from one address and one name, every time.

• Avoid long gaps between campaigns.

• Keep complaint and bounce rates low.

• Warm up a new domain slowly before any large send.

3. Keep Your List Clean and Intent Driven

• Remove contacts who never open or click, every 90 days.

• Focus on high intent subscribers: buyers, repeat clients, and people who reply.

• Segment by behavior:

Buyers (already converted)
Active Prospects (opening, clicking, replying)
Dormant Leads (no activity for 60 days or more)

• Stop mailing Dormant Leads until they re opt in.

A small list of people who want your emails beats a large cold one.

I know what this does from my own list. My open rate had slid from 26 or 27 percent down to 21, 18, 17 and then 16, on a list of about 25,000 people. On a call with the postmaster at my email company, I found a segment of roughly 7,000 to 8,000 people who had stopped opening. I took them out of the broadcast. The open rate went from 16.7 percent to 57.5 percent in a week. The number of people who actually opened was identical.

4. Earn Inbox Placement with Human Signals

• Ask new subscribers to reply to your first email, even a short “Got it.”

Replies help move you from Promotions to Primary.

• Invite replies often with prompts like “Hit reply and tell me.”

• Personal replies build trust and help you land in the inbox.

5. Match Your Lead Magnet to Your Offer

• Attract subscribers who want what you sell.

• If you offer something free, make sure it tests for real interest. Curiosity alone is cheap.

• Example:

Weak: “Free eBook on productivity.”
Strong: “Free workshop on building systems for agency owners.”

• Paid lead magnets, even $10, filter for intent.

Better intent gives you a better list and a better chance of the inbox.

6. Write for Value, Not Volume

• Keep subject lines personal and relevant.

• Lead with a benefit or a bit of curiosity. Skip the hype.

• Make the first line sound like you, because it shows in the preview pane.

• One clear call to action per message.

• Use a PS for a soft sell or one more hook.

• Always include contact details and a way to unsubscribe.

7. Optimize Message Structure

• Balance text and images at roughly 80 percent text and 20 percent visuals.

• Use clean HTML templates with plain backgrounds.

• Font size 16 to 18px so it reads well on a phone.

• Limit to five links at most, each going to a different place.

• Keep link URLs under 120 characters.

8. Reinforce Relationship Over Time

• Keep a steady rhythm. Weekly is ideal.

• Rotate message types: story, lesson, offer, testimonial, or check in.

• Segment and reward loyal readers with early access or special updates.

• Remove friction with simple links and clear actions.

9. Troubleshooting Deliverability

If open or click rates drop sharply:

Pause sending for 48 hours.
Clean your list and remove inactive addresses.
Re engage your most active 25 percent first.
Test new content and subject lines.
Return to your normal rhythm only once engagement is back.

10. Maintenance Routine

Monthly: review your list and engagement numbers.

Quarterly: check your SPF, DKIM, and DMARC records.

Annually: update templates, footer details, and brand tone.

Summary

Deliverability is half technology and half people.

Authenticate your domain, protect your reputation, and write to real people.

Focus on subscribers who read, reply, and buy. They pull you into the inbox every time.