Email marketing that converts — guide for Serbian businesses 2026

Every year someone publishes a piece saying 'email marketing is dead.' Every year the data says the opposite. DMA research for 2025 shows an average ROI of €36 per €1 invested. That's not a research error — it's the logic of a direct channel: you're sending to people who gave you their email address, meaning they're already interested. Not random passers-by like display ads. For Serbian businesses, email marketing has an additional advantage: almost every business owner has a client list in Excel or a CRM that's never used for communication.

For beginners, Brevo is the smartest starting point — free up to 300 emails per day, GDPR compliance is built in, and it's straightforward to use. Mailchimp is more popular globally but since 2023 no longer has a free plan for automations. ActiveCampaign is king for B2B firms needing lead scoring and deep CRM integration, but costs from $29 per month. For e-commerce, Klaviyo is the de facto standard — direct integration with WooCommerce and Shopify, and behavioral segmentation is on another level.

The subject line makes or breaks the campaign. Things that work: personalisation with a name ('John, new offer for your company'), numbers ('7 mistakes killing your email open rate'), urgency that is real not invented ('Last 3 spots for the workshop'). What doesn't work: 'Newsletter June 2026', all caps, too many emoji, words spam filters love to catch ('free', 'click here', 'exclusive'). Ideal subject line length is 40 to 55 characters — this displays on mobile without truncation.

Segmentation is the difference between 18% and 38% open rate. Basic segmentation: new subscribers vs. existing clients vs. inactive. Slightly more advanced: by client industry, by previous purchase value, by what they clicked in the previous email. A company selling to both hair salons and law firms cannot send the same email to both groups — relevance is everything. An irrelevant message from a brand you trust still goes to trash.

Three automated sequences every business should have: (1) Welcome sequence — 3 emails over 7 days for everyone who signs up, introduce the company, show what you do, give something useful. (2) Abandoned cart — for e-commerce, an email 1 hour after an abandoned cart recovers an average of 5 to 8% of users. (3) Re-engagement — every 3 months an email to inactive subscribers. Those who don't respond, remove from the list — a clean list ranks better with email providers. Feather Studio helps businesses set up these sequences and integrate them with their website.