How one change = 19% more opens

Hey, Tommy here.

I am back! After a wedding, moving home and keeping the business going.

Today, we're talking about "newsletter engagement optimisation". We’ll have a look at Beehiiv’s 15.6B email data report.

Inside today's issue, you'll discover...

• The surprising timing insight that revealed why some B2B newsletters get dramatically higher open rates

• Why obsessing over the "best day" to send is actually killing your results (and what to focus on instead)

• The 5-strategy framework that transforms your B2B newsletter performance (whether you're just starting out or already have an established audience)

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GROWTH STRATEGY
An in-depth analysis

Is your B2B newsletter getting lost in the inbox ocean?

Your competitors are driving real revenue while you're still waiting on pressing send.

The worst part?

Your potential clients are making buying decisions based on newsletters they actually read.

I just reviewed the latest data from beehiiv's 2025 State of Email Newsletters report

... and what I found might surprise you.

While everyone obsesses over WHICH DAY to send their newsletter

They're completely missing what actually matters.

Here's what the latest data reveals:

The magic isn't about the day you send - it's about the TIME.

According to beehiiv's analysis of over 15.6 billion emails

The highest engagement happens at 12pm UTC

At this time, newsletters see a massive 42.87% average open rate.

Compare that to the lowest time (5am UTC) with only 27.33% open rates.

That's a 15.54% difference just by changing your send time!

But timing is just the start.

Here are 5 actionable strategies to transform your B2B newsletter in 2025:

1. Schedule for peak attention windows

Send your newsletters 11am-12pm GMT when people are likely checking emails before lunch.

Test 10am GMT as a secondary option (42.06% open rates).

Avoid early morning sends (before 8am GMT) when open rates drop below 30%.

1. Optimise for mobile experience

96.2% of internet users access content via mobile devices.

Use 16+ font size for easy reading on smaller screens.

Keep paragraphs to 2-3 lines maximum.

Test your newsletter on your own phone before sending.

Use plenty of white space to prevent "wall of text" syndrome.

1. Master your subject lines

Keep subject lines under 40 characters.

The data shows a direct correlation: shorter subject lines = higher open rates.

Subject lines with 20 or fewer characters had a 37.6% open rate.

Subject lines with 80+ characters saw only 28.68% open rates.

A/B test your subject lines consistently.

1. Focus on engagement metrics that matter

With recent changes from ESPs like Apple, open rates are becoming less reliable.

Track click-through rates, web visits, and response rates instead.

Measure the quality of your list over the quantity of subscribers.

Regular list cleaning improves deliverability (remove unengaged subscribers after 60-90 days).

1. Diversify your revenue streams

Don't rely on just one monetization strategy.

Top newsletters in the beehiiv ecosystem combine multiple approaches:

• Direct sponsorships from complementary B2B services

• Premium content tiers

• Affiliate partnerships

• Event sponsorships and promotions

• Cross-promotion with other relevant newsletters

The most successful B2B newsletters in 2025 aren't just information sources

They're relationship builders.

While your competitors focus on blasting the same generic content to everyone

You can deliver timely, relevant insights exactly when your prospects are most receptive.

Want to see all the data behind these recommendations?

Here's to your inbox success,

Tommy

Founder, NewsLaunch.co

P.S. Your competitors' faces when they see your open rates triple will be worth framing on your office wall

See you soon,

Tommy - founder at NewsLaunch.co

PS: simply reply to this email if you want actionable strategies tailored to you