Journal · N° 43·November 3, 2026·4 min read·email list, customer retention, low season

Your December customers are your May bookings

You will serve hundreds of customers this winter with no way to email them in May. How to collect addresses during the season without annoying anyone.

A restaurant owner in Grand Case, on a Tuesday in September. Twenty covers in a room built for sixty. Last winter he served thousands of customers, and plenty of them left delighted. He has the email address of exactly none of them.

This is not a website problem. His site is decent, it loads fast, it shows the menu. The problem is that a website waits for people to come, and in September nobody comes.

What is an email list for when you already have a website?

For going out to find customers instead of waiting for them. A website, a Google listing, an Instagram account: those are channels where you depend on an algorithm, a budget, or a platform's goodwill. A list of addresses is the only asset you genuinely own, and the only one nobody can switch off or start charging you for overnight.

For a seasonal business like ours on these islands, it does one very specific thing: it turns a December customer into a May customer.

Six months to collect, then nothing

High season, November to April, is your only real window. It is when people walk in, book, pay, and leave happy. Every one of those moments is a chance to capture an address, and none of them comes back around for another year.

The moments are already sitting in the tools you use. You just are not using them:

  • the booking: the email field is already in your form;
  • the online deposit: anyone who pays necessarily leaves an address;
  • the confirmation or invoice: you are already writing to this customer;
  • the wifi at the restaurant or the hotel: access in exchange for an address is a trade everyone understands;
  • the checkout or goodbye: "want us to send you next season's opening dates?"

For anyone renting rooms or villas the stakes are sharper still. A guest who arrives through a platform is a guest the platform owns: it keeps the relationship, and it keeps its commission on the next stay too. Their email address, on the other hand, belongs to you, and it is what decides whether the second booking comes direct. We laid out that tug of war in direct booking versus the OTAs, and a hotel or guesthouse website is built from the same starting point.

How to collect without annoying anyone

Three rules, common sense before they are legal requirements.

A checkbox, never pre-ticked, next to a sentence that says exactly what you will send and how often. "Get our two emails a year: season opening and last-minute offers." A visitor who knows what they are signing up for ticks the box far more readily than one you ambush with a pop-up.

An unsubscribe link in every message that works first time. On the French side of the island, explicit consent and the right to opt out are not options, they are the law. On the Dutch side the rules are different; the commercial logic is not. Either way, a list of four hundred people who want to hear from you beats four thousand who mark you as spam.

And do not ask for anything you do not need. An address and a first name are enough to write a good email. Every extra field cuts the number of people who finish the form.

Two emails a year are enough

This is where nearly everyone gets it wrong, and in both directions: either nothing ever goes out, or a monthly newsletter launches in January and dies in March.

Two messages a year fit in an owner's calendar. One at the season opening, in November, to say you are back and from which dates. One in the quiet months, for an offer that only exists then and says so. Hold that rhythm for three years and you have a list that answers. Hold it for a month and you have one more chore.

What gets measured

No promises, three numbers. How many addresses you collect each month during the season, which you must be able to export into a file yourself, without asking anyone's permission. The open rate on your two sends. And the number of bookings that land in the ten days after an email, compared with an ordinary week.

Those three numbers cannot be guessed and take an hour to measure. We never promise a first page on Google, and we are not about to promise you an open rate either. We set up the collecting, we show you the numbers, and you decide what comes next.

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