Definition
Email internationalization, often written i18n, is the process of building email so it can be easily adapted for different regions. It covers language and tone, date and currency formatting, character encoding, and right-to-left layouts for markets like Arabic and Hebrew. Designing templates with internationalization in mind means a single template can be localised without a full rebuild.
What to Internationalize
- Content language and tone
- Dates, times, names and currency
- Character encoding for non-Latin scripts
- Right-to-left (RTL) layouts
- Legal, consent and compliance text per region
Design for Adaptation
Leave space for longer translations, use locale-aware date and currency fields, set correct encoding and direction, and test widely used clients. Keep images and CTAs meaningful across cultures — what works in one market can confuse another.
Why It Matters
A global list that receives well-localised email builds trust and engagement, while poorly localised email gets ignored or marked as spam. Internationalization protects deliverability and relevance across every market you serve.
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Frequently Asked Questions
It is designing and localising email so it works for global audiences, covering language, date and currency formats, character encoding and right-to-left layouts, so a template adapts across regions.
Set correct character encoding, support right-to-left layouts, and test in the email clients used in those markets. Design with space for longer translated text and culturally appropriate content.
Relevant, well-localised email earns engagement and fewer complaints, which protects sender reputation and inbox placement. Poor localisation leads to unsubscribes and spam complaints.