Here are some ways to prevent missing characters in your email campaigns:
Use Standard Fonts: Stick to web-safe fonts that are widely supported across different email clients. Proper Encoding: Ensure your emails are encoded in UTF-8, which supports a wide range of characters and symbols. Clean Copy-Paste: When copying text from other sources, paste the content into a plain text editor first to remove hidden formatting before adding it to your email. Test Across Clients: Regularly test your emails on multiple devices and clients to ensure compatibility.