About

Email infrastructure,
built by the people who run it

Winnr was founded in 2024 by a team of email deliverability engineers who spent years managing SMTP servers, MTA clusters, and IP reputation at scale. We built the platform we wished existed.

Own Infrastructure Automated DNS Built-in Warming Full REST API

Our Story

Why we built Winnr

Before Winnr, our team ran email infrastructure for agencies sending millions of outbound emails per month. We saw the same problem everywhere: sales teams were paying Google Workspace per-seat prices for every sending inbox, spending hours on manual DNS setup, and getting suspended without warning for doing exactly what they signed up to do.

The alternatives weren't much better. Most providers resold Google Workspace or Microsoft 365 seats, and many SMTP providers required quarterly or annual contracts, and locked customers into annual contracts.

We knew there was a better way because we'd been building and operating SMTP infrastructure for years. So we built Winnr: a platform where sales teams get fully authenticated email accounts on infrastructure we run ourselves, in minutes, not hours. Every account gets proper SPF, DKIM, and DMARC from day one. Every customer gets the same enterprise-grade infrastructure we'd been running for our own clients.

The Team

Small team, deep expertise

Everyone who works on Winnr has hands-on experience operating mail servers, debugging DNS records, and managing IP reputation.

Engineering

Infrastructure & Platform

SMTP server operations, mail server configuration, DNS automation, API development, and the dashboard you use every day. Over a decade of combined experience running mail at scale.

Deliverability

Reputation & Compliance

IP warm-up strategy, blocklist monitoring, feedback loop management, and sender reputation optimization. We actively manage the infrastructure that keeps your emails in inboxes.

Support

Customer Success

Real humans who understand email infrastructure, not scripted chatbots. We respond to every support request and help customers optimize their setup for maximum deliverability.

Our Values

What we believe

Own the infrastructure

We don't resell Google Workspace or Microsoft 365. We operate our own SMTP servers, and manage the IP pools we send from. When something goes wrong, we can actually fix it.

Authentication is non-negotiable

Every email account ships with fully aligned SPF, DKIM, and DMARC from the moment it's created. Gmail and Yahoo made authentication mandatory. We've had it since day one.

Transparent pricing

No annual lock-in, no hidden fees, no "contact sales" pricing. Two plans, clear per-account costs, and you can cancel anytime. We compete on product quality, not contract length.

API-first

Everything in Winnr is available through our REST API. Domains, mailboxes, warming, sending, inbox monitoring. If you can do it in the dashboard, you can automate it.

Infrastructure

Purpose-built for cold email

Mail servers and outbound delivery nodes in datacenters on four continents (North America, Europe, Asia and Africa), plus our own authoritative DNS network, serving customers on six continents.

Smart Routing

Our outbound delivery nodes handle IP rotation, rate limiting and bounce processing. Most mailboxes send from shared, managed IP pools, and traffic is spread across them to protect deliverability.

Reputation Monitoring

We monitor sender reputation across the major inbox providers. Dedicated IPs are an optional Enterprise add-on ($20 per IP per month) for customers who want a reputation of their own.

Automatic DNS

SPF, DKIM, DMARC, and MX records are provisioned automatically when you add a domain, many on our own authoritative DNS network. No manual zone file editing, no waiting for propagation.

Company

Company facts and how to reach us

Legal entity: Winnr Software LLC, founded in 2024
What we sell: Cold email infrastructure: SMTP/IMAP mailboxes, domains, built-in warming and pre-warmed mailboxes. Plans from $69/mo for 50 mailboxes. See Winnr pricing and how SMTP mailboxes for cold email work.
Support: Email support@winnr.app for help with your account, billing or refunds. Enterprise customers also get phone, WhatsApp and Slack support. Answers to most questions are in the Winnr help center.
General and sales: info@winnr.app, or book a 30-minute demo.
Guarantee: If your mailboxes aren't reaching 90% deliverability, ask and we refund your most recent month. Read the refund policy.
Reviews: Rated 4.7 on Trustpilot from 26 reviews (October 2026). Read Winnr reviews and what customers say.
How we write: Our guides and comparisons are written by the Winnr Deliverability Team. See our editorial standards.

Email infrastructure,built by the people who run it