SMTPReady

By Swobu Ltd · Windows software

Your legacy devices.
Modern Microsoft 365 email.

Keep printers, scanners and applications sending email through Microsoft 365. SMTPReady runs locally on Windows and uses modern authentication for outbound Microsoft 365 delivery.

License information

$99 one-time · Perpetual license · One active installation

A local bridge, not another mail server

  1. Your device or application submits email to SMTPReady over SMTP.
  2. SMTPReady queues accepted messages locally on your Windows machine.
  3. SMTPReady delivers through Microsoft 365 using modern application authentication.

A Microsoft 365 administrator configures the application identity and mailbox authorization. SMTPReady does not remove your tenant’s security or administration requirements.

What you need

A Windows x64 machine, a Microsoft 365 tenant, an authorized relay mailbox and an administrator who can configure application access.

The release acceptance matrix covers Windows Server 2019, Windows Server 2025, Windows 10 Enterprise LTSC 2021 and Windows 11. See the published release notes for verified support and installation requirements. Compatibility with any particular printer or scanner model is not promised.

One purchase. One active installation.

The planned price is $99 USD, paid once, for a perpetual SMTPReady license. One installation may be active at a time. Customers can deactivate the previous installation through Polar and move their activation to another machine.

Purchasing is not open yet. The production Polar checkout is pending verification.

Download and install

Installers and release notes are published on GitHub. Download the Windows x64 MSI from the latest published release, follow its setup instructions, and configure Microsoft 365 authorization before sending mail.

View latest release

If no release is available, public downloads have not opened yet.

Support

SMTPReady is supplied by Swobu Ltd. A verified support email will be published before purchasing opens.

When requesting help, include your product version and a redacted diagnostic bundle. Never send passwords, certificate private keys or license keys.

Terms

SMTPReady is licensed software from Swobu Ltd. The intended license grants perpetual use with one active installation at a time; it does not grant ownership of the software. Microsoft 365 subscriptions and administration are separate. Final purchase, tax, refund and support terms will be published before checkout opens.

Privacy

This page has no analytics, cookies, scripts or account system. The hosting provider processes requests to serve the page. Following a GitHub or Polar link takes you to that provider, whose privacy terms apply. SMTPReady runs locally; Microsoft 365 delivery and license validation contact their respective providers.