twilio-sendgrid-engagement-quality

Overview

SendGrid Engagement Quality (SEQ) scores measure how "wanted" your email is by recipients. Higher scores (1-5 scale) correlate with better inbox placement. SEQ is a diagnostic tool — it tells you where your email program is healthy and where it needs improvement.

Key insight: SEQ scores are correlated with deliverability. A higher score means more emails land in inboxes, not spam folders.

Eligibility Requirements

Your account must meet ALL conditions to receive scores:

1. Pro or Premier Email API plan — SEQ is not available on Free or Essentials plans
2. Open tracking enabled in SendGrid settings
3. Minimum 1,000 messages sent in the previous 30 days

If not eligible, the score and metrics fields are omitted from API responses entirely.