Test more than the ideal recipient
Use examples with a full name, a single name, accents, long values, and a missing optional field. Confirm the greeting and other dynamic content remain grammatically clear and do not show raw placeholder syntax.
Check that each field comes from the intended source and is escaped appropriately for its context. A value inserted into HTML, a URL, or plain text may need different handling to prevent broken formatting or unsafe links.
Protect recipient data during review
Send previews only to controlled test inboxes and avoid placing real customer details in shared logs or screenshots. If the template supports a fallback value, make sure it is respectful and accurate when profile data is absent.
After reviewing, compare the final template and campaign audience, then send a small approved test batch if appropriate. Monitor bounces and rendering feedback before expanding to the full audience.