Customization in Personalized Email Campaign

If we are using the Email Experience Manager for daily news camping and we have list of recipient  they should receive this email daily if the is only new news added
in this case we can simply overwrite the sent pipline to make sure that we have news.
but what if the list of news personalized to the recipient . in this case
 recipient  1 maybe have news while recipient 2 didn't   to solve this we can do

Added hidden field  to the generated email a

Set the value of SendEmail in page load

	<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="EmailNewsListing.ascx.cs" Inherits="Layouts.EmailCampaign.TMF.NewsAndInsights.EmailNewsListing" %>
	<input type="hidden" id="hdnSendEmail" runat="server" value="SendEmail:null" />
	//your listing

view raw EmailNewsListing.ascx hosted with ❤ by GitHub

	if (//has items)
	{
	hdnSendEmail.Value = "SendEmail:true";
	}
	else
	{
	hdnSendEmail.Value = "SendEmail:false";
	}

view raw EmailNewsListing.ascx.cs hosted with ❤ by GitHub

and in the sent pipeline we can check if the flag is in the SendEmail = true we send the message other wise we know that this message is empty and we can ignore sending the message

	using Sitecore.Diagnostics;
	using Sitecore.EDS.Core.Dispatch;
	using Sitecore.ExM.Framework.Diagnostics;
	using Sitecore.Modules.EmailCampaign;
	using Sitecore.Modules.EmailCampaign.Core.Pipelines;
	using Sitecore.Modules.EmailCampaign.Exceptions;
	using Sitecore.Modules.EmailCampaign.Factories;
	using Sitecore.Pipelines;
	//using Sitecore.Modules.EmailCampaign.Core.Dispatch;
	//using Sitecore.Modules.EmailCampaign.Core.Pipelines;
	//using Sitecore.Modules.EmailCampaign.Exceptions;
	//using Sitecore.Modules.EmailCampaign.Factories;
	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Threading;
	using System.Threading.Tasks;
	namespace EmailExperience.Pipeline
	{
	public class SendEmail
	{
	// Fields
	private readonly ILogger _logger;
	private readonly Random _rand;
	// Methods
	public SendEmail() : this(EcmFactory.GetDefaultFactory().Io.Logger)
	{
	}
	public SendEmail(ILogger logger)
	{
	this._rand = new Random();
	Assert.ArgumentNotNull(logger, "logger");
	this._logger = logger;
	}
	public void Process(SendMessageArgs args)
	{
	Assert.ArgumentNotNull(args, "args");
	bool sendemail = false;
	EmailMessage message = args.CustomData["EmailMessage"] as EmailMessage;
	if (message == null)
	{
	args.AddMessage("Missing EmailMessage from arguments.");
	}
	else if (message.Recipients.Count < 1)
	{
	args.AddMessage("Missing Recipients from EmailMessage argument.");
	}
	else if (!DispatchManager.IsConfigured)
	{
	args.AddMessage("Dispatch manager is not configured");
	}
	else if (message.HtmlBody.Contains("hdnSendEmail"))
	{
	this._logger.LogInfo("Found the hdnSendEmail");
	if (message.HtmlBody.Contains("SendEmail:null"))
	{
	this._logger.LogInfo("Custom Send Email null");
	}
	else if (message.HtmlBody.Contains("SendEmail:false"))
	{
	this._logger.LogInfo("Custom Send Email false");
	}
	else if (message.HtmlBody.Contains("SendEmail:true"))
	{
	this._logger.LogInfo("Custom Send Email true");
	sendemail = true;
	}
	}
	else
	{
	this._logger.LogInfo("hdnSendEmail not Found");
	sendemail = true;
	}
	if (sendemail)
	{
	Sitecore.Modules.EmailCampaign.Core.EcmGlobals.GenerationSemaphore.ReleaseOne();
	this._logger.TraceInfo(string.Format("Message dispatch has started. Subject: '{0}'. Recipient: '{1}'.", message.Subject, message.Recipients[0]));
	args.StartSendTime = DateTime.UtcNow;
	if (GlobalSettings.MtaEmulation || args.Task.Message.Emulation)
	{
	Thread.Sleep(this._rand.Next(GlobalSettings.EmulationMinSendTime, GlobalSettings.EmulationMaxSendTime));
	if (this._rand.Next(0, 0x186a0) <= (GlobalSettings.EmulationFailProbability * 1000.0))
	{
	throw new NonCriticalException("Emulation failed", new object[0]);
	}
	}
	else
	{
	DispatchResult result = DispatchManager.SendAsync(message).Result;
	//check
	//args.Task.Summary.AddMailSizeSend(int.Parse(result.Statistics.Get(1)));
	}
	args.AddMessage("ok", PipelineMessageType.Information);
	this._logger.TraceInfo(string.Format("Message dispatch has been completed. Subject: '{0}'. Recipient: '{1}'.", message.Subject, message.Recipients[0]));
	args.SendingTime = Util.GetTimeDiff(args.StartSendTime, DateTime.UtcNow);
	}
	}
	}
	}

view raw SendEmail.cs hosted with ❤ by GitHub

then you have to update your configurations

	<SendEmail>
	<processor type="Sitecore.EmailCampaign.Cm.Pipelines.SendEmail.FillEmail, Sitecore.EmailCampaign.Cm">
	<param desc="cipher" ref="exmAuthenticatedCipher" />
	</processor>
	<!--<processor type="Sitecore.EmailCampaign.Cm.Pipelines.SendEmail.SendEmail, Sitecore.EmailCampaign.Cm" />-->
	<processor type="YourNamespace.EmailExperience.Pipeline.SendEmail, YourNamespace.EmailExperience" />
	<processor type="Sitecore.EmailCampaign.Cm.Pipelines.SendEmail.CreateTask, Sitecore.EmailCampaign.Cm">
	<param ref="exm/sentMessagesTaskPool"/>
	<param desc="logger" ref="exmLogger" />
	</processor>
	</SendEmail>

view raw Sitecore.EmailExperience.ContentManagement.config hosted with ❤ by GitHub