Add unreachable email note to contact records for triage

When delivery-failure webhooks arrive without a contact note, agents miss address failure context and follow-ups stall. Add an unreachable-email comment so agents can act same day.

Workflow preview:

Zap details:

Overview

Delivery-failure alerts often arrive without contact context, leaving agents to hunt for matching records and delaying outreach. This flow attaches an unreachable-email note to the correct contact so agents see delivery issues and act within minutes.