The average open rate of a B2C newsletter sits around 18%. Ours show 30%. This is not a one-off spike on a successful send — it is a stable average, measured across 557 campaigns sent to 172,066 subscribers. This gap is not explained by a technical trick or a miracle subject line. It is explained by how the list was built, by the content subscribers receive, and by the trust accumulated over years. This article shows you the concrete mechanisms behind this number — and what it means for your campaigns.
Organic list vs purchased list: the fundamental difference
The first reason for our open rate is one word: organic. Every one of our newsletter subscribers signed up voluntarily. Nobody bought a database, imported a contact file or added emails collected at a trade show. Each address corresponds to a person who took the step to subscribe because they wanted to receive this newsletter.
This distinction changes everything. On a purchased list, the recipient never asked to receive your emails. They don't recognise the sender. They don't expect the content. Result: open rates between 5 and 12%, high unsubscribe rates, and a permanent risk of ending up in spam. On an organic list, the recipient made an active choice. They open the email because they know what they will find.
In practice, here is how our subscribers join the list:
- Via thematic sites — A cross-border worker reads a tax article or job listings for their canton. They subscribe to the newsletter to get more.
- Via Facebook communities — A group member sees content shared from the newsletter. They subscribe to get it directly in their inbox.
- Via job alerts — A candidate subscribed to daily alerts also subscribes to the monthly newsletter for a broader view of their local area's news.
Each Nexa network channel feeds the others. The newsletter doesn't push into the void — it captures subscribers who have already interacted with the network. This is the circular mechanism we describe in our article on how our Facebook communities work: each touchpoint reinforces the next.
Content subscribers actually expect
An open rate doesn't stay at 30% if the content disappoints. The subscriber who opens a newsletter and finds nothing useful won't open it next time. The consistency of our performance is explained by a simple principle: each newsletter contains information the subscriber cannot easily find elsewhere.
Territory-specific content. A Geneva cross-border worker doesn't want to read Luxembourg news. Each newsletter is calibrated for a specific geographic area: job listings from their canton, tax changes that affect them, events in their region. This territorial relevance is why the subscriber opens — they know the content concerns them personally.
Actionable content. No generic articles on "employment trends in 2025". Concrete information: a new regulation taking effect next month, a job listing matching their profile, a tip verified by the editorial team. The subscriber opens the newsletter because they find things they can use immediately.
A monthly frequency that doesn't overwhelm. Receiving one email per month doesn't create fatigue. The subscriber doesn't unsubscribe because they're overwhelmed. The newsletter remains an appointment — not a nuisance. This frequency discipline protects the open rate over time.
Trust built over years
The third factor is the hardest to replicate: time. Our newsletters have existed for several years. The longest-standing subscribers have been receiving them since the beginning. Each send that keeps its promise — relevant content, no spam, no data resale — reinforces trust. And trust, in email marketing, is measured directly in the open rate.
This trust manifests in three concrete ways:
- The sender is recognised. The subscriber sees the newsletter name in their inbox and immediately knows what it is. No doubt, no hesitation. They open.
- Content quality is predictable. The subscriber doesn't wonder whether they'll find useful content or disguised spam. They know from experience that the content is worth reading.
- The email arrives in the main inbox. Email services (Gmail, Outlook) use interaction history to classify emails. A regularly opened and clicked email stays in the inbox. A regularly ignored one goes to promotions or spam. Our newsletters stay in the inbox because subscribers interact with them.
What this means for your sponsored inserts
A 30% open rate is not an abstract number. It is a direct multiplier of your insert's performance.
23,000 opens per send. Out of 172,066 subscribers, 30% open rate means your insert is seen by approximately 23,000 people per send. These are not passive impressions: each open corresponds to a subscriber who voluntarily clicked to read the newsletter.
2,700 qualified clicks. Inserts in our newsletters generate an average of 2,700 clicks per send. The clicks-to-opens ratio exceeds 11% — a figure consistent with the engagement level of the list. Each click corresponds to a cross-border worker who saw your insert, was interested in the message, and chose to visit your page. All details on the format and process in our guide on inserts in our monthly newsletters.
A context that transfers trust. Your insert benefits from the trust relationship the newsletter has built with its subscribers. The subscriber doesn't perceive your insert as intrusive advertising — they perceive it as a recommendation validated by a media they read regularly. This trust transfer is what explains the high click rate. It is the same mechanism as for sponsored posts in our Facebook communities: the trust context transforms an ad into content perceived as legitimate.
For advertisers who want to combine the power of newsletters with the other network channels, our guide on the multichannel campaign explains how to orchestrate it all.
How Nexa Capital can help
Nexa Capital operates 4 monthly newsletters totalling 172,066 opt-in subscribers, with a 30% open rate maintained across 557 campaigns. This performance rests on years of organic list building, territory-calibrated content and a trust relationship that purchased lists cannot replicate. Your sponsored insert directly benefits from this performance — 23,000 opens and 2,700 clicks per send, in a trust context that maximises conversion.