The challenge

Halo Robotics had a hard launch date tied to a press embargo and an industry event. They needed to hit 80,000 targeted prospects in the first week with strong deliverability — but starting from cold mailboxes meant a 2-to-4-week warmup window they didn''t have. Buying volume on cold infrastructure would have meant 30–40% of the launch landing in spam.

Why they chose Icemail

Icemail''s pre-warmed mailbox pool let them skip the warmup phase entirely and send at real volume on day one, on infrastructure with established sending reputation.

The solution

Halo provisioned 120 pre-warmed mailboxes 48 hours before launch, exported them into Smartlead, and ramped to full sending volume immediately. Reply management ran through Icemail''s unified inbox so the 3-person BD team could keep up with response volume during launch week.

The results

Hit 80,000 prospects in 6 days (vs. an estimated 4-week ramp on cold mailboxes)
91% inbox placement during launch week
1,840 demo requests booked in the first 14 days
Estimated $310,000 in pipeline created in the launch window

"We had a launch date we couldn''t move and an infrastructure problem that should''ve made it impossible. Pre-warmed mailboxes made it a non-issue." — Yusuf Karim, VP Marketing, Halo Robotics

What''s next: Using the same pre-warmed pool for a Series C announcement push next quarter.