LinkedIn newsletter, email newsletter or Substack: where should a small team publish?

The LinkedIn newsletter vs email newsletter choice comes down to one thing: who owns your readers. A LinkedIn newsletter gets you read from the first edition, because LinkedIn invites your connections and followers to subscribe, but the subscribers stay on LinkedIn. An email newsletter starts from an empty list, and every address on it is yours to keep, move and write to.

Substack sits between the two: a publishing platform with its own network of readers, and a subscriber list you can export whenever you like.

I compared the three on what matters to a small team selling services: ownership, reach, cost, data protection, search visibility and branding. The LinkedIn and Substack details come from their help centres and the trade press, checked in October 2026. This comparison is part of my guide to sales funnels and newsletters.

LinkedIn newsletter vs email newsletter vs Substack at a glance

The first row matters most. Reach can be built over time; a list you cannot export stays wherever the platform decides to keep it.

LinkedIn newsletter: readers on day one, but LinkedIn keeps them

A LinkedIn newsletter is a series of LinkedIn articles that members can subscribe to. According to LinkedIn’s help centre, when the first edition is published, your connections and followers are invited by notification to subscribe, and subscribers then receive a notification and an email for each new edition. Every member can start one; company Pages have extra conditions.

That head start is the format’s strength. Nobody has to find a sign-up form: people who already know you subscribe in one click, inside an app they open anyway.

The limits are just as clear:

• You cannot export your subscribers. LinkedIn gives you no email addresses and no download, so the audience stays on LinkedIn if you stop using it.
• Reach is LinkedIn’s call. Beyond the notifications, an edition travels like a post, and since LinkedIn rebuilt its feed in March 2026, its models decide which members see it. My article on the LinkedIn algorithm in 2026 explains the change.
• The statistics are LinkedIn’s. You see the totals its dashboard shows, which since February 2025 include email sends and an estimated open rate, but never what each subscriber opened or clicked.

I am not a social media manager. When I helped a client on social media, engaging and posting brought 60 relevant new followers in a month, but I prefer my other services: their results are more palpable. LinkedIn newsletter subscribers are much like those followers: worth having, but not an asset you can take with you.

Who it suits: teams whose buyers already read LinkedIn (B2B services, consultants, recruiters), and anyone who wants to test whether people will read them before building a list.

Email newsletter: your list, your costs, your responsibility

An email newsletter on your own list works the other way round. People sign up through a form, usually on your website, and you write to them from an email marketing tool such as Brevo, MailerLite, Mailchimp or Kit. Nobody is invited for you, so the list grows one sign-up at a time, and your first 100 subscribers are the hardest to find.

In exchange, you get everything LinkedIn keeps:

• The list is yours. You can export it as a file and move to another tool without losing a reader.
• Each issue goes to the inbox, not into a feed: no ranking model decides who sees it, only the spam filters.
• Your brand: your design, your sender name, your domain.
• Data per person: who clicked what, who replied and who unsubscribed, which shows you who is interested.

And you take on three jobs LinkedIn did for you:

1. Paying for the tool. Every tool in my comparison of newsletter tools has a free plan for a small list; beyond it, the monthly fee grows with your list or your sending volume.
2. Deliverability. Since February 2024, Gmail and Yahoo have required bulk senders (for Gmail, about 5,000 or more messages a day) to authenticate their domain and offer one-click unsubscribe, and Microsoft set authentication rules for Outlook.com in May 2025. A small list sits below those thresholds, but the same setup helps it reach the inbox: see the sender rules explained.
3. Consent. Every address on the list needs a legal reason to be there, usually the subscriber’s consent (more on this below).

Who it suits: every team that wants to stay in touch with clients and prospects for years. It is the only one of the three you fully control.

Substack: a publication with a list you can take away

Substack is a publishing platform: each newsletter is also a website, at yourname.substack.com, with an archive readers can browse and an app they can read in. Starting is free. If you turn on paid subscriptions, Substack takes 10% of the revenue, and Stripe, which processes the payments, adds its own fees (Substack’s help centre on pricing).

Three things set it apart from a LinkedIn newsletter:

• You can export your subscriber list at any time, so you can leave with your readers.
• It has its own network. Other writers can recommend your publication to their readers, and Notes, Substack’s feed of short posts, helps people who do not know you yet find you.
• Your own domain is an option. Substack prices it in dollars: a one-off $50 (about £37) per publication at the time of writing (October 2026), on top of the domain name itself, which you buy from a registrar (Substack’s help centre).

The drawbacks: the design, the reading experience and the app belong to Substack, and its network is built for people who come to read, which suits commentary and expertise better than a list of services. For a team that wants clients to book a call, a website plus an email tool does the same job under its own brand.

Who it suits: experts, consultants and trainers whose newsletter is itself the product, and anyone planning paid subscriptions.

Who owns the data: GDPR in each case

Each option gives you a different role under data protection law. This is general information, not legal advice; if your list mixes customers, prospects and countries, an hour with a lawyer or a data protection officer is worth it.

• LinkedIn newsletter. Your subscribers are LinkedIn members, and LinkedIn handles their data under its own privacy policy. You never receive their addresses, so there is no list for you to secure, and none to keep.
• Your own list. You decide why and how the addresses are used, which makes you the controller under Article 4(7) of the GDPR. Your email tool processes them on your behalf and must be bound by a contract that meets Article 28. You also need each subscriber’s consent, unless the soft opt-in for existing customers or, in some countries, the rules for business addresses apply: my guide to newsletter consent under the GDPR and PECR covers the rules.
• Substack. Substack collects the sign-ups and sends the emails under its own terms. Any list you import into it must already meet the consent rules, and once you export your subscribers to use them elsewhere, that copy is yours to protect, with the same duties as any list you run yourself.

The GDPR also reaches businesses outside the EU that offer goods or services to people in the EU (Article 3(2)): a Swiss, Canadian or US team selling to clients in France follows these rules for its subscribers there. For subscribers in the UK, the UK GDPR and PECR set very similar rules.

SEO: only one option builds your own website

For search, the three are not equal. LinkedIn editions are pages on linkedin.com: even when one shows up in Google, the visit lands on LinkedIn, not on your site. Substack posts are public pages on a substack.com address, or on your own domain if you pay for it, in which case your domain gathers the links and the visits. An email is not a web page at all: it ranks nowhere until you publish it on your website.

So whatever you choose, publish each issue, or its best part, as an article on your own site. Your newsletter then works for your search visibility too, and every link to it points to your own domain.

My verdict: publish where your clients read, build the list you own

For most small teams, the answer is not one of the three but a combination, in this order:

1. Start your own list now, even with a handful of people: a free plan and a sign-up form on your website.
2. If your clients read LinkedIn, use it for reach. Post there or run a LinkedIn newsletter, and end each edition with one line inviting readers to get it by email, with a link to your sign-up page.
3. Keep the archive on your website, so each issue can bring visits from search.
4. Choose Substack instead of an email tool only if the newsletter is your product or you plan to charge for it, and set up the custom domain from the start, so your archive builds your name, not Substack’s.
5. Add channels one at a time. It is easy to fall for the newest tool or format; focus on the channels you already run and make them work before you open another.

Once the channel is chosen, the content is the same everywhere: my B2B newsletter ideas cover formats, frequency and 20 topics to start with.