What problem does it solve? Sending cohort recruitment emails to a subscriber list risks mailing people who already applied or are existing members, and untracked sends make open and click performance impossible to measure. This Skill encodes a tested procedure for recipient exclusion, quality-gated email building, tracked SMTP sending, and post-send logging. ## Core Features & Use Cases - Triple-exclusion recipient filtering: Cross-checks the subscriber DB against the cohort application DB (all rows, including empty cohort fields) and the member DB by both email and name, since member emails are only half populated. - Mandatory tracking and quality gates: Enforces the --volume flag on every send for open-pixel and click tracking, and passes send_bulk.py gates H1-H11 (highlight count, image count, banned phrasing) plus opt-in filename requirements. - Compliance and post-send logging: Requires (광고) subject labeling under Korean law, unsubscribe footer text, next-day open/click aggregation, IMAP bounce cross-checking, and memo markers in the subscriber DB. - Use Case: When launching a new GET100 cohort, build the announcement email from the brand template, filter the opt-in subscriber list against applicants and members, get approval on the exclusion report, then send with tracking and record results. ## Quick Start Ask the agent to prepare and send the cohort recruitment email to the opt-in subscriber segment, applying the triple-exclusion check and volume tracking before sending.
