Hi, {{first_name|friend}}. 👋
Welcome to Issue #219 of All About Email!
Last week, I shared an update on my long-gestating email community, Campfire Email.
This week, I wanted to share some actionable tips to help you start 2026 with a cleaner, more deliverable email list, and yes, this email will clip…🫠 😭
Let’s go! 👇
Stay up-to-date with AI
The Rundown is the most trusted AI newsletter in the world, with 1,000,000+ readers and exclusive interviews with AI leaders like Mark Zuckerberg, Demis Hassibis, Mustafa Suleyman, and more.
Their expert research team spends all day learning what’s new in AI and talking with industry experts, then distills the most important developments into one free email every morning.
Plus, complete the quiz after signing up and they’ll recommend the best AI tools, guides, and courses – tailored to your needs.
Is List Health Going to Matter More than Ever in 2026?
🚨 Before we get started, these seven repeatable tips are not a one-time thing; it’s a behaviour and an ongoing effort to be a better sender.
You can run these tips this week, and again every quarter if that works for you (you might need to adjust for your particular situation).
If you follow these tips, you’ll start 2026 with:
Better deliverability,
Fewer cold subscribers,
Fewer spam complaints,
And a list that feels significantly more alive (engaged).
Day 1: Know Your Risk Segments
Before improving your list, you need a baseline.
Create four segments, as this will help tell you where the decay is happening:
Engaged: opened or clicked in 30 days
At-risk: opened or clicked in 31–90 days
Unengaged: no activity in 90+ days
Risky: role accounts, typo domains, low-quality lead-magnet signups, serial re-subscribers.
Remember, with Apple MPP and bot opens and clicks, replies are very important, whilst opens and clicks need to be treated with caution.
💡 (I talk more about Apple MPP, and bot opens in Issue 189, Issue 190, and more about engagement and segmentation in Issue 212.)
Day 2: Fix Your Inputs
Check your:
1. Forms
Add real-time address validation.
Use double opt-in.
Remove gimmicky incentives.
Ensure sending + tracking domain alignment (DMARC ❤️)
2. Subscriber Sources
Label every source: YouTube, Twitter, referrals, landing pages, paid ads (etc).
Bad sources are always visible once you tag them appropriately.
💡 Your ESP will often do this for you, but you can add UTM links or use tracking software on your website to help with this.
This has been particularly helpful for me as I know of one referrer in particular who consistently sends excellent subscribers and one who sends not-so-engaged subscribers.
Day 3: Reset Expectations
💡 This could well be a very underrated list-health tactic.
Send a short email titled "Here’s what to expect from this newsletter in 2026" (that’s just an example; you should personalise it and make it on-brand).
Inside, make it simple:
Why they subscribed.
What they’ll receive.
How often.
Where to manage preferences.
🚨 Spam complaints drop dramatically when you set expectations clearly. Bonus points for doing all of the above in every email.
Day 4: Re-Engage the 31–90 Day Readers
These people aren’t “cold.” They’re just fading.
Send something short and human:
Give them one link to click. That’s it.
A small bump in engagement here protects your sending reputation.
Day 5: Warm the Cold Segment Carefully
💡 Your 90-day+ inactive subscribers need gentle handling.
Don’t keep blasting them; instead, consider a sunset automation (more on that next week).
Keep the email clean and straightforward.
Ask: “Do you still want to receive this newsletter?” (you’ll need to flesh this out a bit)
Let them answer with a single click.
If they engage: great. 🎉
If not, then Day 6. 👇
Day 6: Remove Inactive Subscribers
💡 Saying goodbye can be painful, but it’s necessary, and your inboxing, engagement and sender reputation will thank you.
Remove or suppress:
Hard bounces (ESPs should automatically do this).
Repeated soft bounces.
Anyone inactive for 180+ days (this depends on your sending frequency, and I do this every 90 days).
Spam Complaints.
Obvious bad addresses (role accounts, malformed domains).**
** You could use a tool like ZeroBounce to help with this.
Day 7: Build Your Long-Term System
💡 A sprint is great, but a system is better.
You can make things even easier for yourself and better for your subscribers with automation.
Put these in place:
Monthly
Prune bounces and complaints.
Check sign-up sources.
Monitor engagement shifts.
Quarterly
Run this sprint again.
Send another expectation reset.
Run a deliverability audit.
Annually
Review list decay.
Re-evaluate incentives & opt-ins.
Assess ESP performance.
Further Reading
If you want to go deeper, I’ve included some links in the sections above, but here are some more to help you in 2026 and beyond:
Your Treasure Map to the Inbox - Issue 170.
Tips & Best Practices for Data - Issue #166 and Issue #167.
Deliverability Basics - Issue #168 and Issue #169.
That’s it for this week! 👋
Curiosity Corner
Welcome to Curiosity Corner! Each week, I throw one question your way…not always about email marketing, but always worth a reply.
This week’s question is about newsletter length. 👇
Do you like long newsletters or short?
In last week’s poll, I asked you about Black Friday and Cyber Monday offers. “Yes” (for a client[s]) leading with 7 out of 14 votes (50.00%). 👇
Did You run a BFCM offer this year?
🟨🟨⬜️⬜️⬜️⬜️ Yes (as a business owner/in-house) (3) 🟩🟩🟩🟩🟩🟩 Yes (for a client[s]) (7) 🟨🟨🟨⬜️⬜️⬜️ No (4) 14 Votes
All About Email - Playlist 🎧
Want to know what I'm listening to while I write?
Every week, when the newsletter drops, I'll share the track of the moment to create an unbelievably eclectic playlist just for your inbox.
Unlock ChatGPT’s Full Power at Work
ChatGPT is transforming productivity, but most teams miss its true potential. Subscribe to Mindstream for free and access 5 expert-built resources packed with prompts, workflows, and practical strategies for 2025.
Whether you're crafting content, managing projects, or automating work, this kit helps you save time and get better results every week.
Sponsorship Opportunities
🚨 If you’re interested in sponsoring the “All About Email” newsletter, you can find all the details in this Google Doc.
Email Marketing News & Tips
This week's excellent and insightful email news & tips:
Newsletter Advertising Cost - What I’ve Learned From Running Campaigns (Beehiiv)
Nuance of Engagement - Let's Talk Reengagement. (Word to the Wise)
Transactional vs Bulk Email - Delivery Differences Explained. (Bento)
Events - Emailexpert Announces Two Major Email Industry Events in Spain for 2026. (Emailexpert)
New Feature - How to Create a Newsletter in Outlook. (Emailtooltester)
Using Bolt or Loveable? - How to Validate Emails Automatically in Bolt.new and Lovable Signups Using ZeroBounce. (ZeroBounce)
Wrapping Up - The Best 42 Year In Review Email Examples & Designs in 2025. (Really Good Emails)
Something Special - 2025 Black Friday Emails that Stood Out. (Email Love)
Newsletter Q&A LIVE [replay] - Ask Us Anything About Growth & Monetization. (Growth in Reverse)
🧠 Updated - Email Client Feature Support Rankings. (Email Markup Consortium)
What About BIMI? - Microsoft is pulling support for inline SVG images. (Spam Resource)
Pre-send Testing Tools - Unboxing Inbox Monster's Rendering Tool. (Inbox Monster)
Tips for Success - 5 Practical Ways To Monetise Content in 2026. (Beehiiv)
If you have any questions about this email or email marketing, please reply, and I will answer you as soon as possible.
I hope you have a great week! 👋




