Merge pull request #10 from myloveCc/dev

Fix issues #9 and update version to 2.0.2

Author: myloveCc

README.md

@@ -10,12 +10,12 @@ MailKit extension for asp.net core
 # Install with nuget
 
 ```
-Install-Package NETCore.MailKit -Version 2.0.1
+Install-Package NETCore.MailKit -Version 2.0.2
 ```
 
 # Install with .NET CLI
 ```
-dotnet add package NETCore.MailKit --version 2.0.1
+dotnet add package NETCore.MailKit --version 2.0.2
 ```
 
 # How to use
@@ -39,6 +39,8 @@ public void ConfigureServices(IServiceCollection services)
             Port = Convert.ToInt32(Configuration["Port"]),
             SenderName = Configuration["SenderName"],
             SenderEmail = Configuration["SenderEmail"],
+			
+			// can be optional with no authentication 
             Account = Configuration["Account"],
             Password = Configuration["Password"],
             // enable ssl or tls

example/NETCore.MailKit.Web/Startup.cs

@@ -49,6 +49,8 @@ public void ConfigureServices(IServiceCollection services)
                     Port = Convert.ToInt32(Configuration["Port"]),
                     SenderName = Configuration["SenderName"],
                     SenderEmail = Configuration["SenderEmail"],
+
+                    //can be optional with no authentication 
                     Account = Configuration["Account"],
                     Password = Configuration["Password"]
                 });

src/NETCore.MailKit/MailKitProvider.cs

@@ -9,7 +9,7 @@
 
 namespace NETCore.MailKit
 {
-    public class MailKitProvider : IMailKitProvider
+    public class MailKitProvider:IMailKitProvider
     {
         public MailKitOptions Options { get; private set; }
 
@@ -41,7 +41,7 @@ private SmtpClient InitSmtpClient()
 
             client.ServerCertificateValidationCallback = (s, c, h, e) => true;
 
-            
+
             if (!Options.Security)
             {
                 client.Connect(Options.Server, Options.Port, SecureSocketOptions.None);
@@ -55,8 +55,12 @@ private SmtpClient InitSmtpClient()
             // Note: since we don't have an OAuth2 token, disable
             // the XOAUTH2 authentication mechanism.
             client.AuthenticationMechanisms.Remove("XOAUTH2");
-            // user login smtp server
-            client.Authenticate(Options.Account, Options.Password);
+
+            // user login smtp server (fix issue #9)
+            if (!string.IsNullOrEmpty(Options.Account) && !string.IsNullOrEmpty(Options.Password))
+            {
+                client.Authenticate(Options.Account, Options.Password);
+            }
 
             return client;
         }

src/NETCore.MailKit/NETCore.MailKit.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-    <Version>2.0.1</Version>
+    <Version>2.0.2</Version>
     <Authors>Lvcc</Authors>
     <Company />
     <Description>MailKit extension for asp.net core. Easy send email in asp.net core project.</Description>
@@ -12,13 +12,14 @@
     <RepositoryUrl>https://github.com/myloveCc/NETCore.MailKit</RepositoryUrl>
     <PackageTags>MailKit ASP.NETCore</PackageTags>
     <RepositoryType>git</RepositoryType>
-    <AssemblyVersion>2.0.1.0</AssemblyVersion>
-    <FileVersion>2.0.1.0</FileVersion>
-    <PackageReleaseNotes>MailKit ASP.NETCore 2.0.0 ，update to .net core 2.0 rtm.</PackageReleaseNotes>
+    <AssemblyVersion>2.0.2.0</AssemblyVersion>
+    <FileVersion>2.0.2.0</FileVersion>
+    <PackageReleaseNotes>1:Update Mailkit to version 2.0.1.
+2:Fix Issues #9 about "no authentication error"</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MailKit" Version="1.18.1.1" />
+    <PackageReference Include="MailKit" Version="2.0.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.0.0" />
   </ItemGroup>