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winnr

Vendor: winnr

Winnr is a cold email infrastructure platform providing bulk SMTP email accounts with automated SPF, DKIM, and DMARC authentication, plus warming, universal inbox, and integrations with major sales tools.

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Overview

Winnr is a cold email infrastructure platform that provides 50-200+ authenticated email accounts on custom domains with automated DNS setup (SPF, DKIM, DMARC), built-in email warming, a universal inbox, and direct integrations with 15+ sales automation tools. It offers two main plans: Startup ($69/mo for 50 mailboxes, 10 domains, 2,500 emails/day) and Enterprise ($189/mo for 200 mailboxes, 40 domains, 10,000 emails/day, dedicated IPs, white-glove support). Additional features include a pre-warmed domain marketplace ($3/address/mo), external mailbox warming (Gmail/Outlook), REST API and MCP server for AI agents, custom DNS records, domain redirects/forwarding, and bulk domain operations. Winnr handles domain registration and DNS management automatically, with daily health monitoring.

Key Features

Bulk Email Account Generation

Instantly create large volumes of authenticated inboxes (up to 10 per domain) to support high-scale outreach.

Automated Domain Registration & DNS Setup

Handles SPF, DKIM, DMARC, and MX record configuration for new domains; supports nameserver delegation, Cloudflare API token, or manual DNS records.

Sales Tool Integrations

Native one-click export to Smartlead, Instantly, EmailBison, Salesforge, Apollo, Lemlist, SalesHandy, Snov, and 15+ other platforms via CSV or direct sync.

Scalable Sending Infrastructure

Startup plan supports 2,500 emails/day; Enterprise supports 10,000 emails/day (300,000/month) with optional dedicated IPs.

Built-in Email Warming

Automated warming with configurable daily volume and ramp speed; $0.60/mailbox/month; works on native and external Gmail/Outlook accounts; 2-3 week readiness timeline.

Universal Inbox

Unified view of replies across all mailboxes and domains; syncs every 15 minutes; per-mailbox live IMAP view also available.

Pre-warmed Domain Marketplace

Buy pre-warmed domains with health scores (90+ ready-to-send) checked against 9 blocklists; $3/address/month; no minimum term; custom usernames available.

REST API & MCP Server

Full REST API for programmatic control; MCP server enables AI agents to manage domains, mailboxes, warming, and exports.

Custom DNS Records

Add TXT, CNAME, A, AAAA records for tracking domains, verification, or websites; one-click shortcuts for common sequencer tracking CNAMEs.

Domain Redirects & Email Forwarding

Set apex redirects to main website and catch-all forwarding to real inbox to improve domain legitimacy.

Bulk Domain Operations

Tag, retag, enable warming, set redirects, or delete multiple domains at once via bulk actions.

Subdomain Strategy

Access premium TLDs (.io, .sh, .vc, .to) via subdomain approach for improved deliverability.

Deliverability Optimization

Daily DNS health checks, blocklist monitoring (Spamhaus, SURBL, SORBS), warming seed phrase filtering, and authentication best practices.

Rapid Deployment

Domain registration and mailbox creation in minutes; automated setup for fast campaign readiness.

Pros & Strengths

  • ✓
    Cost-Effective Scaling: Provides affordable options for businesses to expand cold email outreach at a fraction of Google Workspace pricing.
  • ✓
    Automated Setup: Simplifies technical aspects of email authentication, domain configuration, and DNS management.
  • ✓
    High Deliverability Focus: Emphasizes proper email authentication, warming, blocklist checks, and health monitoring to enhance inbox placement.
  • ✓
    Responsive Customer Support: Users report exceptionally responsive support that builds solutions and new features quickly to solve business problems.
  • ✓
    Universal Inbox: Consolidated reply view across all mailboxes and domains simplifies reply management and debugging.
  • ✓
    Pre-warmed Marketplace: Skip 2-3 week warming period with ready-to-send domains backed by health scores and blocklist verification.
  • ✓
    Flexible Domain Options: Register new domains, bring your own (BYOD), use Cloudflare API integration, or leverage subdomain strategy for premium TLDs.
  • ✓
    API & MCP Access: Full REST API and MCP server enable deep automation and AI-agent-driven workflows.

Cons & Tradeoffs

  • ⚠
    Learning Curve: Users new to email outreach may require time to understand and utilize all features effectively.
  • ⚠
    Limited Public Reviews: There is a scarcity of user feedback available online to assess overall satisfaction.
  • ⚠
    Warming Costs Extra: Built-in warming is an additional $0.60 per active mailbox per month on top of subscription.
  • ⚠
    Pre-warmed Domains Have Limited Lifespan: Marketplace domains are aged assets with fixed lifespans; Winnr retires them automatically at end of life.
  • ⚠
    Account Hold Risk: Accounts may be placed on manual hold for spam complaints, blocklist listings, or list-quality issues, requiring questionnaire and review to resolve.

Known Limitations

  • • Warming is a paid add-on ($0.60/mailbox/month)
  • • Pre-warmed marketplace domains have finite lifespans and are retired automatically
  • • Maximum 10 mailboxes per domain
  • • Account holds can pause sending during manual review
  • • Universal inbox syncs every 15 minutes (not real-time)
  • • External mailbox warming requires providing SMTP/IMAP credentials

Pricing & Plans

Model: subscription
USD69 /month

Startup Plan: $69/month — 50 email accounts, 10 domains, 2,500 emails/day, DKIM/SPF/DMARC, universal mailbox, full REST API. Enterprise Plan: $189/month — 200 email accounts, 40 domains, 10,000 emails/day, dedicated IPs available, white-glove domain setup, phone/WhatsApp/Slack support. Additional email accounts: $1/mailbox/month. Warming: $0.60/active mailbox/month. Pre-warmed marketplace: $3/address/month (no minimum term). Dedicated IPs: $50/month (Enterprise only).

✓ Free Plan ✓ Free Trial

Pricing verified: 2026-08-20

Editorial Info

Last Reviewed: 2026-08-20

Verified Sources & Research

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