How to Localize Marketing Emails at Scale: Methods, Tradeoffs, and Real Results from Miro

Two-thirds of B2B SaaS buyers prefer content in their native language. Forty percent won't purchase if it isn't available. For Miro — a 100-million-user global platform supporting eight languages in email marketing — localization isn't optional. It's a growth lever. Rob Gaer from Miro's localization team breaks down the three methods for building localized emails, the tradeoffs of each, and the automated workflow that cuts localization time from two hours per template to 20 minutes. The honest take on dynamic content mapping: it's extremely scalable once set up. Getting there is extremely difficult. Rob doesn't sugarcoat it. What you'll learn: - Why targeting subscribers by region is a flawed proxy for language preference — and the three better alternatives - The three methods for building localized emails: dedicated templates, inlining with conditional logic, and dynamic content mapping - Why German and Polish copy runs approximately 30% longer than English — and how to handle layout without breaking your design - How Miro's Email Localization Flow (ELF) uses semantic tagging and a TMS platform to cut per-template localization time by 75% - Why localized emails drove doubled open rates in some markets and a 4x adoption lift among non-English speaking new users - The KISS principle for localization: why clear, idiom-free writing makes translation dramatically faster and more accurate