WinMail is a SaaS transactional email platform built for secure, reliable and scalable email delivery through SMTP Relay and a modern REST API.
Built for applications, platforms, SaaS products, billing systems and business email automation.
Send email through your applications using standard SMTP credentials.
Modern API for developers who need fast and reliable integration.
Support for DKIM, SPF and verified sender domains.
Receive real-time delivery, bounce and complaint events.
Monitor failed deliveries and protect sender reputation.
Powered by enterprise-grade cloud infrastructure and designed for SaaS scale.
A straightforward path to production-grade email delivery.
Add DKIM & SPF records to authenticate your sending domain.
Generate SMTP credentials or a REST API key from the dashboard.
Deliver transactional messages reliably and at scale.
Monitor deliveries, bounces and complaints via webhooks.
WinMail is designed for white-label usage, multi-tenant accounts, analytics, API keys and enterprise-grade email delivery workflows.
For business access, onboarding or technical integration, contact the WinMail team. We usually reply within one business day.