How to Choose an Email Marketing Platform (UK Guide)

An email marketing platform is software for sending marketing emails to a list: it stores subscribers, provides templates, sends in bulk, handles unsubscribes and reports on results. Mailchimp, Brevo, MailerLite, Kit and Klaviyo are among the names you will meet, along with email features built into shop and booking systems.

"Email marketing company" can mean two things: a platform you use yourself, or an agency that runs your email marketing for you. This guide is mainly about platforms; if you are thinking of handing the work over, see what email marketing costs.

Features that matter for a small business

Feature	Why it matters
Sign-up forms with consent records	Shows how and when people agreed, which UK rules expect you to be able to evidence
Simple drag-and-drop templates	Lets you produce a clean email in minutes, readable on phones
Automations	Welcome emails, birthday or rebooking reminders that run by themselves
Segments and tags	Send different emails to customers, enquirers or areas
Integrations	Connects to your website, shop, booking or till system
Domain authentication	Helps your emails reach inboxes; major providers expect it
Clear reporting	Clicks, conversions and list growth without wading through charts
Support hours and language	Help when something breaks before a send

How pricing usually works

• By number of contacts: the most common model; price rises as your list grows.
• By emails sent: suits businesses with large lists that email rarely.
• Free tiers: many platforms offer free plans with limits on contacts, sends or features, and often show the platform's branding.

Prices and limits change often, so compare current plans on each provider's own site for your actual list size and sending frequency. Check what happens when you go over a limit, and whether you can export your list if you leave.

Questions to ask before you choose

1. Does it connect directly to the systems I already use, such as my online shop or booking software?
2. Can it record consent and handle the soft opt-in for customers?
3. Where is my data stored and processed? If outside the UK, how does the provider cover international transfers?
4. Can I set up a welcome email automatically?
5. Will my templates look right on phones without fiddling?
6. Can I export everything, subscribers and consent records included, if I switch?

Matching the platform to your business

• Service businesses such as salons, clinics and trades: look first at the email features of your booking system, which may handle reminders and simple newsletters.
• Online shops: choose a platform with a strong integration for your shop software, so abandoned-basket and post-purchase emails are easy. See ecommerce email marketing.
• Content and newsletter-led businesses: prioritise simple writing, good landing pages and subscriber growth tools.
• B2B firms: look for CRM integration and clear reporting by company. See B2B email marketing.

Switching platforms

Export subscribers with their consent details and tags, rebuild your sign-up forms, re-authenticate your sending domain on the new platform and send a test to yourself before your first campaign. Avoid importing old contacts who have not engaged in years; a fresh start is a good moment to clean the list.