Not a “Mail Magazine” — an Email Newsletter

Tell an English speaker you publish a “mail magazine” and you’ll likely get a raised eyebrow. The phrase evokes a glossy paper magazine arriving in the mailbox — not the digital inbox. In everyday English, the product Japan calls メールマガジン (mēru magajin) is simply an email newsletter, or just a newsletter.

But in Japan, the compound word stuck. Mail (the email kind) + magazine (a periodical with curated content) fused into a single concept, and by the early 2000s it was one of the most common ways for writers, companies, and fans to reach an audience directly.

The Mag2 Era

The Japanese メルマガ boom has a clear origin point: まぐまぐ (Mag2), founded in 1999 as a free platform for anyone to publish an email newsletter to subscribers. Long before Substack, long before Patreon, Mag2 let individuals build lists of tens of thousands of readers and eventually charge monthly fees for premium content.

The most famous example is Takafumi Horie (Horiemon), whose paid メルマガ reportedly earned hundreds of millions of yen a year at its peak. His success proved something the English-speaking world only rediscovered a decade later with Substack: readers will pay for a writer they trust, delivered straight to their inbox.

メルマガ — the Everyday Short Form

In casual speech and marketing copy, メールマガジン is almost always shortened to メルマガ. You’ll see it everywhere:

• メルマガ登録 → sign up for the newsletter
• メルマガ解除 → unsubscribe
• 有料メルマガ → paid newsletter
• 公式メルマガ → official company newsletter

Walk into any Japanese corporate website today and there’s a good chance you’ll find a small form inviting you to register your email for the company’s メルマガ — even in 2026, long after SNS like LINE and X took over most real-time communication.

Still Alive in the Substack Era

Globally, the 2020s brought a newsletter renaissance: Substack, Ghost, Beehiiv, and countless paid newsletters from journalists and experts. In Japan, this trend reinforces an older habit rather than replacing it. Companies still run メルマガ for B2B marketing, and new platforms like note (ノート) have stepped into the space Mag2 once dominated, offering paid membership-style newsletters.

The concept is the same as the Western “newsletter.” But the word? Still メルマガ. English-speaking tech writers in Japan often have to consciously translate their own sentences: “my newsletter” in English, “メルマガ” the moment they switch to Japanese.

Fun Fact

Mag2 turned 25 years old in 2024 and still operates as one of Japan’s largest newsletter platforms. At its 2000s peak, it hosted hundreds of thousands of titles — from celebrity columns to niche hobbyist letters — and pioneered the paid-subscription model years before Western creators made it fashionable. Every time a Japanese site asks you to register for a メルマガ, you’re seeing a quiet echo of that first newsletter boom.