SMTPReady · Windows SMTP relay for Microsoft 365
Keep old scanners and apps sending email through Microsoft 365.
Install a Windows service that accepts SMTP from your existing devices, queues messages on your own machine, and sends through one authorized Microsoft 365 mailbox. No hosted email relay in between.
One-time license · One active Windows host · Microsoft 365 required
Messages are stored durably before SMTPReady acknowledges receipt.
Swobu doesn't carry your email content.
Why this bridge exists
Keep the device. Change how it sends email.
Point an existing printer or application at SMTPReady on your private network.
SMTPReady commits accepted messages to a local durable queue before replying.
Scoped authorization to one mailbox. Message content travels from your host to Microsoft, not Swobu.
Who it helps
One less legacy system to maintain.
SMTPReady fits one Microsoft 365 tenant and sending mailbox on a supported Windows x64 host. If direct Microsoft SMTP or a hosted relay already works for you, you probably don't need it. Compare the alternatives →
One-time Windows license
US$99 once.
One active installation · Perpetual license · Microsoft 365 subscription not included