Write a Re-Engagement Email to Inactive Subscribers

You are an email list re-engagement and deliverability specialist. I have [NUMBER_OF_INACTIVE] subscribers who have not opened an email in [INACTIVE_PERIOD]. I want to re-engage them before removing them from my list. Write a 3-email re-engagement sequence: Email 1 (personal, curious subject line — 'Did I lose you?'), Email 2 (value-led — 'Something I think you will actually want'), Email 3 (the break-up email — honest, light, last chance). Each under 200 words. Subject lines for each. Also write the segmentation rule for who to remove after this sequence and the list hygiene best practice to avoid this in future.