diff --git a/Modules.Messaging/MailLicense.xml b/Modules.Messaging/MailLicense.xml
new file mode 100644
index 00000000..05105264
--- /dev/null
+++ b/Modules.Messaging/MailLicense.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<License>
+  <Id>4dc5ef40-f1a9-468b-994c-b7ed600ad878</Id>
+  <ProductName>Mail.dll</ProductName>
+  <SubscriptionUntil>2022-07-29</SubscriptionUntil>
+  <RegisteredTo>Digital Data GmbH</RegisteredTo>
+  <LicenseType>single developer</LicenseType>
+  <BuyerName>Digital Data GmbH</BuyerName>
+  <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
+    <SignedInfo>
+      <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
+      <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
+      <Reference URI="">
+        <Transforms>
+          <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
+        </Transforms>
+        <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
+        <DigestValue>75MRtl4ipYelIZYlpT8O7QDX9Zc=</DigestValue>
+      </Reference>
+    </SignedInfo>
+    <SignatureValue>Raxfkz6DfQVs/sMvH+F2nH0eHXD8FoUFSdP3t7AgBUdpABJQx86srlyuMSEhXPlc1THCqPouEVob4RsWnd9OXvTiPPSOUSK9zuNG6uz93KLAhpSD5PraAgBCF4jwZArlAp7aCNfZpHqQ3w6TRHS+CfravUU0AHHG3MZ1ZcRkGuo=</SignatureValue>
+  </Signature>
+</License>
\ No newline at end of file
diff --git a/Modules.Messaging/Messaging.vbproj b/Modules.Messaging/Messaging.vbproj
index d16b4926..2709f59b 100644
--- a/Modules.Messaging/Messaging.vbproj
+++ b/Modules.Messaging/Messaging.vbproj
@@ -131,5 +131,10 @@
       <Name>Logging</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="MailLicense.xml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
 </Project>
\ No newline at end of file