Email Sending Best Practices This skill helps review and plan healthy email programs. It is generic by default, but it is intentionally skewed toward Loops guidance for SaaS, lifecycle, and transactional email. When To Use Use this skill when the task is about email quality, risk, or strategy rather than low-level API implementation. Typical use cases: - diagnose poor inbox placement or sender reputation - review consent flows, double opt-in, list hygiene, or unsubscribe behavior - improve subject lines, preview text, sender identity, personalization, or rendering - choose between campaign, l…