How do you interpret mixed inbox results across providers?

Common patterns:

• Good at Gmail, bad at Microsoft (engagement vs IP focus)
• Good at consumer ISPs, bad at corporate (different policies)
• Good overall, bad at one provider (specific issue)

Analysis approach:

• Identify which providers have issues
• Research what those providers emphasize
• Check provider-specific tools (Postmaster, SNDS)

Provider priorities:

• Gmail: engagement, user behavior
• Microsoft: IP reputation, complaints
• Yahoo: complaint rates
• Corporate: policies, blocklists

Response:

• Provider-specific remediation
• May need different strategies per provider
• Different port authorities have different priorities. Understand each one.