If you’ve noticed your email open rates sliding from a healthy 40% down to a depressing 15%, you aren't just losing "engagement"—you are losing your cheapest channel for repeat bookings and referrals. In an industry where OTA commissions eat 20-30% of your margin, a dying newsletter is a leak in your most profitable bucket.
The reality of the tour industry is that people don't buy tours every week, but they do plan their next three years of travel constantly. If your emails are landing in the "Promotions" tab or, worse, being ignored because they look like a generic flyer, you are effectively invisible. I’ve managed an aggregated €10M+ in revenue across my portfolio, and a significant portion of that comes from maintaining a clean, high-performance email list that people actually want to read.
Here is how you diagnose the rot and fix your newsletter open rates without using "hype" or clickbait.
1. The Audit: Is it Deliverability or Content?
Before you change a single word of your copy, you need to know if your emails are even reaching the inbox. If your open rate is below 20%, you likely have a technical deliverability problem. If it’s between 25% and 35% but dropping, you have a relevance problem.
First, check your sender reputation. If you’ve been blasting your entire list of 10,000 past guests with the same "10% off June" coupon for three years, Gmail and Outlook have flagged you as a low-value sender.
How to verify your technical health:
- Check your SPF/DKIM records: Ensure your domain is authenticated so you don't look like a spoofing account.
- Monitor "Spam Complaint" rates: Anything over 0.1% (1 in 1,000) is a red flag.
- Clean the "Zombies": If someone hasn't opened an email in 6 months, they are actively hurting your ability to reach the people who do want to hear from you.
2. Aggressive List Hygiene (The "Purge" Framework)
It feels counterintuitive to delete subscribers you paid to acquire, but a smaller, active list is objectively more valuable than a large, dead one. ISP algorithms (Google, Yahoo) look at your "Engagement Rate" to decide whether to put you in the Inbox or the Spam folder. If 70% of your list ignores you, the ISP assumes the email is junk.
My 3-Step Purge Framework:
- Segment the Unengaged: Create a segment of anyone who hasn't opened an email in the last 150 days.
- The "Breakup" Email: Send one plain-text email with the subject line: "Should I stop emailing you?" Explain that you only want to send stuff they find useful. Ask them to click a link if they want to stay.
- The Execution: If they don't click or open that breakup email within 7 days, delete them. Not archive—delete.
Within two weeks of doing this, those who remain will see your emails more often because your "Sender Score" will skyrocket.
3. Move from "Broadcast" to "Behavioral" Segments
Most tour operators treat their newsletter like a megaphone. They send the same update about a new van or a seasonal festival to everyone. But a corporate traveler who booked a Lisbon incentive trip has zero interest in your "Family Half-Day Surf Lesson" discount.
You must segment your list based on the intent they showed when they booked or signed up.
- Lead Origin: Did they download a "Local's Guide to Madrid" or did they book a "Private Tapas Tour"?
- Travel Persona: Family, Solo/Backpacker, Luxury/Couple, or Corporate.
- Spending Habits: High-yield private tour clients vs. budget-conscious group tour travelers.
By sending a specific email to a segment of 400 people, you will often get more bookings than sending a generic email to 4,000. Relevance is the only way to sustain high open rates over the long term.


