Scaling cold email isn’t complicated — it’s math + infrastructure.
• 50 emails/day per mailbox (safe volume)
• 20 mailboxes = 1,000/day
• 200 = 10,000/day
• 2,000 = 100,000/day
At Otter PR we run 890 mailboxes — that’s how we reached $800K/month.
Pros scale horizontally. Push past 50 per inbox and you tank deliverability.
Stack. Multiply. Scale. It’s simple. Not easy. But it works.
#ColdEmail #EmailDeliverability #LeadGen #AIAutomation #B2BMarketing #OtterPR #LeadGenJay