The Outbound Dilemma
When building cold outreach campaigns or publishing newsletters, teams face an unfair choice. Traditional marketing ESPs charge exorbitant monthly fees for every contact in your database—even when those contacts are inactive. Meanwhile, legacy sales engagement tools charge $80 to $100+ per user seat every single month, punishing you simply for expanding your sales development team.
To make matters worse, senders are subjected to arbitrary multi-day approval gatekeeping, opaque deliverability penalties, and rigid billing systems that refuse international payment methods.
We built Centimailer on a simpler, fairer premise: email infrastructure should be priced by sending volume, configured instantly, and engineered for relentless primary inbox delivery.
Our Four Engineering Principles
1. Deliverability First
Multi-IP clusters, automated queue pacing, and strict RFC 8058 header alignment ensure your emails bypass spam filters and land in the primary inbox.
2. Zero Per-Seat Markups
Never pay per user, per inbox, or per SDR. We charge based strictly on sending volume so your margins grow as your outbound operation scales.
3. Sovereign & Flexible Billing
Fund campaigns on your own terms using Bitcoin, Ethereum, USDT, Litecoin, PayPal, or corporate card checkout with instant automated invoice crediting.
4. Privacy by Design
Strict multi-tenant tenant isolation, zero third-party tracking scripts, and an absolute zero-sale policy for customer contact lists and campaign content.
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