Winnr Help Center

Guides, tutorials, and answers for every part of the platform. Have a question the docs don't cover? Ask the chatbot in the bottom-right, or email support@winnr.app.

Getting Started

Sign up, choose a plan, and set up your first domain and mailbox.

Domains

Register new domains, connect ones you already own, manage DNS, and monitor health.

Mailboxes

Create, rename, and delete email users. Manage credits and per-mailbox settings.

Warming

Turn on Winnr's built-in warming, tune settings, and read the metrics.

Marketplace

Buy pre-warmed domains ready to send from day one.

Inbox

See replies across every mailbox in one unified inbox.

Export & Integrations

Plug your Winnr mailboxes into Smartlead, Instantly, EmailBison, and 15+ other sending tools.

Billing

Plans, add-ons, invoices, upgrades, and cancellations.

API & MCP

Manage everything through the REST API — or let an AI agent do it via the MCP Server.

Affiliate Program

Earn 40% recurring commission for referring Winnr customers.

Troubleshooting

Diagnose common issues with domains, warming, DNS, and billing.

Popular articles

Connect Winnr mailboxes to EmailBison — Winnr exports directly to EmailBison's bulk-import format. Import via CSV, mailboxes connect automatically. Works with EmailBison campaigns and reporting.
Bulk operations on domains — Tag, retag, enable warming, set redirects, or delete many domains at once. Select rows on the Domains page and use the row of action buttons that appears to apply the same change across everything selected.
Turn on warming for a mailbox — Enable Winnr's built-in warming on any mailbox from the Warming page. Pick daily volume and ramp speed. Costs $0.60 per mailbox per month. Runs in the background — first useful signals show within 3-5 days, full readiness in 2-3 weeks.
What "account hold" means and how to resolve it — A rare manual review state. Winnr's team may place an account on hold when its sending raises concerns (spam complaints, blocklist listings, list-quality issues). You answer a short questionnaire and the team reviews before lifting the hold.
90-day minimum term — Pre-warmed marketplace domains commit you to 90 days minimum from purchase. Cancellation is available after that. The term protects Winnr from customers cycling through domains at breakneck speed and helps keep marketplace prices low.
Emails are bouncing or being rejected — Bounces are usually list-quality issues — invalid recipients or full mailboxes. Rejections are provider-side blocks — spam filters, rate limits, or authentication failures. This tells them apart and fixes each.