Email remains one of the highest-return marketing channels available to a small business. It also sits under rules that a lot of small businesses either ignore or over-interpret, both of which cost them.
Here is what the rules actually say in Europe, and what to do with them.
The basic distinction
Two different regimes apply at once: GDPR governs the personal data, and the ePrivacy rules govern the act of sending unsolicited commercial messages. In practice the second is what determines whether you can email someone.
Individuals, including consumers and sole traders. Prior consent is generally required. Opt-in, freely given, specific and informed.
Existing customers. There is a narrower allowance often called the soft opt-in. If you obtained the address in the course of a sale, you can email them about similar products or services, provided you offered an opt-out at collection and offer one in every message.
Businesses, meaning role-based addresses at a company. The rules are lighter in most member states. Emailing a professional address about something relevant to that person's professional role is generally permitted on a legitimate interests basis, provided you identify yourself, make the purpose clear and offer an easy opt-out.
The B2B position varies by country and is more permissive in some member states than others. If you are prospecting across borders, check the local position rather than assuming.
What consent has to look like
No pre-ticked boxes. Consent must be an active choice.
Unbundled. You cannot make consent to marketing a condition of a purchase that does not require it.
Specific. "We may contact you" is not adequate. Say what you will send.
Recorded. Keep evidence of when and how each subscriber opted in. This is the piece most small businesses lack, and it is the piece a regulator asks for.
As easy to withdraw as to give. A one-click unsubscribe in every email.
What to actually do
Use double opt-in. Not strictly required in most cases, but it gives you clean proof of consent, removes typos and bad addresses, and produces a list that performs better. The small drop in signup numbers is more than repaid in deliverability.
Never buy a list. Beyond the legal exposure, purchased lists destroy sender reputation. A run of spam complaints and bounces will affect delivery of everything you send, including transactional mail. This is the single most damaging thing a small business can do to its email programme.
Segment before you send. Sending everything to everyone raises unsubscribes and complaints. Even crude segmentation, customers versus prospects, by service interest, by location, improves results substantially.
Clean the list. Remove people who have not opened anything in a year, after one re-engagement attempt. Inactive subscribers hurt deliverability. A smaller engaged list outperforms a larger stale one on every metric that matters.
Make the sender real. From a person at your company, not a no-reply address. Replies are valuable and no-reply addresses signal bulk mail to filters.
Deliverability basics
Authentication is not optional any more. The major mailbox providers now require it for bulk senders, and messages without it are increasingly filtered.
Set up SPF, DKIM and DMARC for your domain. Your email platform will document this and it is usually a handful of DNS records. If you send any volume and have not done it, this is the highest-priority item on the list, ahead of anything to do with content.
Also worth doing: use a subdomain for marketing mail so a reputation problem does not affect your ordinary business email.
Content that gets opened
Subject lines that describe rather than tease. Curiosity gaps work once and train people to distrust you.
One purpose per email. Newsletters trying to do five things do none of them.
Something useful in every send. If every email asks for something, opens decline steadily.
Consistent, sustainable frequency. Monthly forever beats weekly for six weeks then nothing. Pick a cadence you can actually maintain.
Where AI helps
Drafting is the bottleneck for most small businesses. Not strategy, not tooling. Sitting down to write the thing.
AI tools shorten that considerably, particularly for the repetitive parts: subject line variants, adapting one piece of content into a short email, writing the follow-up sequence. Mirage Cloud includes a marketing agent covering content and digital presence, and integrates with Brevo and Mailchimp, which are where most French and European small businesses send from.
Two cautions. Generated email that reads as generated performs worse than nothing, because it teaches subscribers to skip you. Use it for the draft and edit for voice. And do not let a tool add addresses to a list without a lawful basis, whatever it promises about enrichment.
The short version
Get consent and record it. Authenticate your domain. Send less often to fewer people with more in it. Clean the list. That is most of it, and it is legal in every member state.
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