A Cold Email Agency Built on AI Speed and Human Judgment
Two kinds of cold email agency exist. One sends 100,000 templated emails and calls a 0.2% reply rate a strategy. The other writes beautifully and can’t get past a spam filter. Otto is the combination: AI to find and structure at scale, humans to write and decide.
52% open rate. 100% deliverability. 95% of customers hit their CTA goal.
The AI + human split, specifically
AI does the volume work. Sifting 100M+ contacts against your ICP. Real-time verification. Signal detection on which accounts to prioritize. Send-pattern optimization per inbox provider.
Humans do the judgment work. Reading your market. Writing the message. Deciding that an angle isn’t landing and rewriting it. Sitting on the monthly call and explaining what the numbers mean.
Neither half works alone. That’s the whole thesis.
| What’s included |
|---|
| Dedicated sales subdomain. New sending addresses on a subdomain built for outreach, so your primary domain’s reputation is never the collateral. |
| Curated prospect lists. Your ICP in, matching US decision-makers out — including people you didn’t know existed. |
| Custom sales messages. Written per segment. Buyers expect messages that feel relevant to them, and they can tell instantly when it isn’t. |
| Constant deliverability and hygiene. Real-time validation, adaptive sending, ongoing data maintenance. Not a setup step — a standing job. |
| A real account team. Assigned to you, on live calls, reviewing metrics monthly. |
Agency, Not Software
Instantly, Smartlead and Apollo are tools. You still have to buy the data, warm the domains, write the sequences, watch the bounce rates, and rewrite when replies dry up. Otto is the team that does those things, for less than the loaded cost of the person you’d hire to run the tool.
Pricing
$1,000/month, 3 or 6 month terms. Infrastructure, data, copy and the account team included.
FAQ
| Will this hurt our domain? No — dedicated subdomain, isolated by design. |
| Do we approve messages? Yes, before anything sends. |
| Which markets? US companies. That’s where our data and deliverability are strongest. |
| Do you work with agencies? Most of our customers are agencies. If you’d also like to offer this to your own clients, ask about the partner setup. |