Legal

Licence notices

SMTPly bundles several open-source libraries. This page lists each component with its licence and copyright. The full text of every licence ships with each installation as THIRD-PARTY-NOTICES.txt (accessible in the application via About → View licence notices).

Bundled open-source components

Component	Licence	Copyright
SmtpServer	MIT	© 2017 Cain O'Sullivan
MSAL.NET (Microsoft.Identity.Client)	MIT	© Microsoft Corporation
Microsoft Graph .NET SDK	MIT	© Microsoft Corporation
MimeKit	MIT	© Jeffrey Stedfast
Serilog	Apache 2.0	© Serilog Contributors
ModernWpfUI	MIT	© Yimeng Wu
CommunityToolkit.Mvvm	MIT	© .NET Foundation
Microsoft.Data.Sqlite	MIT	© .NET Foundation
SQLite (engine)	Public Domain	D. Richard Hipp et al.
SQLitePCLRaw	Apache 2.0	© SourceGear, LLC
Microsoft.Extensions.*	MIT	© .NET Foundation
ASP.NET Core (Kestrel)	MIT	© .NET Foundation
.NET 10 runtime	MIT	© .NET Foundation

Full licence text

The unabridged licence text of all the components listed above is available:

in the GitHub repository: THIRD-PARTY-NOTICES.txt
after installation locally under %ProgramFiles%\Smtply\THIRD-PARTY-NOTICES.txt
directly in the SMTPly application via About → View licence notices

Trademark notice

SMTPly is not an official Microsoft product. Microsoft 365, Exchange Online, Microsoft Graph and Azure are registered trademarks of Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation. SMTPly uses these names purely descriptively to refer to the respective products. All other trademarks named here are the property of their respective owners.

SMTPly itself

SMTPly is proprietary software. The licence notices above apply only to the bundled third-party components. Use of SMTPly itself is governed by our terms and software licence agreement.