CompuMaster.Net.Smtp 2025.1.10.100

CompuMaster.Network.Smtp

SMTP messaging with support for alternative body and embedded images

Simple download/installation using NuGet

Install-Package CompuMaster.Network.Smtp

Sample: Quick initialization of SMTP component

C#

using System.Collections.Generic;
using CompuMaster.Net.Smtp;
...
SmtpWorker MySmtpWorker = new SmtpWorker();
MySmtpWorker.SmtpServerName = "localhost";
MySmtpWorker.SmtpServerPort = 465;
MySmtpWorker.SmtpAuthType = SmtpWorker.SmtpAuthTypes.LoginSsl;
MySmtpWorker.SmtpUserName = "user";
MySmtpWorker.SmtpPassword = "password";

VB.NET

Imports System.Collections.Generic
Imports CompuMaster.Net.Smtp
...
Dim MySmtpWorker As New SmtpWorker()
MySmtpWorker.SmtpServerName = "localhost"
MySmtpWorker.SmtpServerPort = 465
MySmtpWorker.SmtpAuthType = SmtpWorker.SmtpAuthTypes.LoginSsl
MySmtpWorker.SmtpUserName = "user"
MySmtpWorker.SmtpPassword = "password"

Sample: Prepare a message with alternative message parts and attachment for embedded image

C#

EMailAttachment MyAttachment = new EMailAttachment("logo_64x64.png", "logo");
List<EMailAttachment> Attachments = new List<EMailAttachment>(new EMailAttachment[] { MyAttachment });
EMailAddress Recipient = new EMailAddress(My.Settings.TestRecipientName, My.Settings.TestRecipientAddress);
EMailAddress Sender = new EMailAddress(My.Settings.TestSenderName, My.Settings.TestSenderAddress);
EMailAddress ReplyToAddress = Sender;
EMailMessage MyMessage = new EMailMessage(
         Recipient, 
         "TestSubject", 
         "Plain body", 
         "<h1>HTML body with embedded image</h1><img src=\"cid:" + MyAttachment.PlaceholderInMhtmlToBeReplacedByContentID + "\">", 
         Sender, 
         ReplyToAddress, 
         System.Text.Encoding.UTF8, 
         Attachments, 
         EMails.Priority.High, 
         EMails.Sensitivity.Normal, 
         false, 
         false, 
         (System.Collections.Specialized.NameValueCollection)null
         );

VB.NET

Dim MyAttachment As New EMailAttachment("logo_64x64.png", "logo")
Dim Attachments As New List(Of EMailAttachment)(New EMailAttachment() {MyAttachment})
Dim Recipient As New EMailAddress(My.Settings.TestRecipientName, My.Settings.TestRecipientAddress)
Dim Sender As New EMailAddress(My.Settings.TestSenderName, My.Settings.TestSenderAddress)
Dim ReplyToAddress As EMailAddress = Sender
Dim MyMessage As New EMailMessage(Recipient,
         "TestSubject",
         "Plain body",
         "<h1>HTML body with embedded image</h1><img src=""cid:" & MyAttachment.PlaceholderInMhtmlToBeReplacedByContentID & """>",
         Sender,
         ReplyToAddress,
         System.Text.Encoding.UTF8,
         Attachments,
         EMails.Priority.High,
         EMails.Sensitivity.Normal,
         False,
         False,
         CType(Nothing, Specialized.NameValueCollection)
         )

Sample: Send demo e-mail and check for exceptions

C#

CompuMaster.Net.Smtp.SmtpSendResult SendResult;
SendResult = MySmtpWorker.SendMessage(MyMessage);
if (SendResult.Success)
    System.Console.WriteLine("EMAIL SENT SUCCESSFULLY :-)");
else
    System.Console.WriteLine("FAILURE: " + SendResult.Exception.ToString());

VB.NET

Dim SendResult As CompuMaster.Net.Smtp.SmtpSendResult
SendResult = MySmtpWorker.SendMessage(MyMessage)
If SendResult.Success Then
    System.Console.WriteLine("EMAIL SENT SUCCESSFULLY :-)")
Else
    System.Console.WriteLine("FAILURE: " & SendResult.Exception.ToString)
End If