Third-Party Notices

Last updated: 31 October 2026 · Version 1.0 · iqmeta GmbH

This English version is a convenience translation. In case of any discrepancy, the German version prevails.

1. Introduction

SharpMailserver uses high-quality open-source components. We thank all authors and contributors. The full machine-readable list including complete license texts (MIT, Apache-2.0, PostgreSQL, OFL-1.1, SQLite blessing) is available as THIRD-PARTY-NOTICES.md and is also shipped with every release.

2. Components

Component	Version	License	Copyright holder	Project
.NET Runtime / ASP.NET Core	10.x	`MIT`	.NET Foundation and Contributors	github.com/dotnet/runtime
Microsoft.Extensions.Hosting.WindowsServices / Systemd	10.0.0	`MIT`	.NET Foundation and Contributors	github.com/dotnet/runtime
Microsoft.Data.Sqlite	10.0.14	`MIT`	.NET Foundation and Contributors	github.com/dotnet/efcore
Microsoft.Data.SqlClient	7.1.1	`MIT`	Microsoft Corporation	github.com/dotnet/SqlClient
ASP.NET Core SignalR JS client	8.0.7	`MIT`	.NET Foundation and Contributors	github.com/dotnet/aspnetcore
BouncyCastle.Cryptography	2.7.0	`MIT`	The Legion of the Bouncy Castle Inc.	github.com/bcgit/bc-csharp
MimeKit	4.18.2	`MIT`	.NET Foundation and Contributors (Jeffrey Stedfast)	github.com/jstedfast/MimeKit
DnsClient	1.8.0	`Apache-2.0`	Michael Conrad	github.com/MichaCo/DnsClient.NET
Npgsql	10.0.3	`PostgreSQL`	The Npgsql Development Team	github.com/npgsql/npgsql
PdfPig	0.1.16	`Apache-2.0`	UglyToad and PdfPig contributors	github.com/UglyToad/PdfPig
SQLitePCLRaw.bundle_e_sqlite3	2.1.14	`Apache-2.0`	SourceGear, LLC (Eric Sink)	github.com/ericsink/SQLitePCL.raw
SQLite	3.x	`blessing (Public Domain)`	-	www.sqlite.org/
OpenTelemetry .NET (5 packages)	1.20.1	`Apache-2.0`	The OpenTelemetry Authors	github.com/open-telemetry/opentelemetry-dotnet
Tailwind CSS	3.x	`MIT`	Tailwind Labs, Inc.	tailwindcss.com/
Inter (font)	4.x	`OFL-1.1`	The Inter Project Authors	rsms.me/inter/
JetBrains Mono (font)	2.x	`OFL-1.1`	The JetBrains Mono Project Authors	www.jetbrains.com/lp/mono/
Stripe.net (website checkout only)	53.0.0	`Apache-2.0`	Stripe, Inc.	github.com/stripe/stripe-dotnet

3. External services (not bundled)

ClamAV® (GPL-2.0-only) can optionally be used for virus scanning. SharpMailserver communicates with an independently installed clamd daemon via its documented network protocol; no ClamAV code is linked or distributed.

4. Source code requests

None of the bundled components require us to provide source code. If you believe a component is missing or attributed incorrectly, please contact support@sharpmailserver.com.