What is winnr?
“Winnr is a cold email infrastructure provider. It sells SMTP/IMAP mailboxes on its own sending servers, not Google Workspace or Microsoft 365 seats, from $69/month for 50 mailboxes ($1.38 each) to $189/month for 200 ($0.95 each).”
Winnr
“Cold email infrastructure: SMTP and IMAP mailboxes on Winnr's own sending infrastructure, domains, automatic SPF, DKIM and DMARC, built-in warming, pre-warmed mailboxes, a REST API and an MCP server.”
Questions & answers
How do I sign up?
“Create an account at app.winnr.app/signup. You can look around the app without a card. Buying or connecting domains and creating mailboxes needs a paid plan, starting with Startup at $69/month. See Winnr plans and pricing.”
How many domains do I need?
“Plan on about 5 mailboxes per domain: 50 mailboxes need about 10 domains, 200 need about 40. At 10 to 20 cold emails per mailbox per day, 10 domains carry 500 to 1,000 cold emails a day. Run your own numbers in the cold email calculator.”
Do SMTP mailboxes land in the inbox as well as Google Workspace?
“They can. Inbox placement depends on domain reputation, authentication, list quality, content and volume per mailbox as much as on who hosts the mailbox.”
Data formats & record details
Download this profile and inspect its supporting evidence.
- Entity ID
- urn:readyscan:entity:winnr-q141207911
- Material fingerprint
- fnv1a64:bb5e394c44310b8c
- Entity revision
- fnv1a64:8b98da497774aeaa
- Published
- 2026-10-26
- Modified
- 2026-10-26
- Source summary
- Winnr: “Cold email infrastructure: SMTP and IMAP mailboxes on Winnr's own sending infrastructure, domains, automatic SPF, DKIM and DMARC, built-in warming, pre-warmed mailboxes, a REST API and an MCP server.”