We decided to gather a waitlist of people who were potentially interested in the future product and created a landing page with an opportunity to get early notification to sign up.

In 12 months we managed to collect 1130 emails.

The conversion to the response of the first 300 invites was low: approx 10%-20%.

Conversion is almost the same if we select fresh (added 24 hours ago) or old emails (added 6 months ago). We tried different hypotheses:

— We sent invites in batches of 40/50 messages.

— Mixing those who just got added to the waitlist (2 days ago) with those who did it 6 months ago.

— Tried different meanings, text, and subjects.

— Sent direct messages for personal contact.

— Sent credentials right away, directly from the platform.

— Tried different email services (Gmail and our domain).

— Wrote on behalf of the founder or the team.

— We have sent follow-ups.

Can you please share your tips/hacks on engaging cold email base?

Thanks