Build anticipation before the reveal

Send 7-10 days before launch to prime your audience:

• Hint at the problem - Remind them of a pain point you are solving
• Create curiosity - Something big is coming language
• Gauge interest - Ask them to reply if they want early access
• Set the date - Give them a specific day to look forward to

Subject line ideas:

1. We have been working on something for months...
2. Remember when you asked for [feature]?
3. Mark your calendar for [date]

Do not reveal everything. Mystery drives opens on the next email.