Sample SharePoint TimerJob,Save Email Log to List Through Swith Case

Namespaces to add:

using System.Text;
using Microsoft.SharePoint.Administration;
using System.Data;
using System.IO;
using Microsoft.SharePoint;
using System.Net.Mail;
using System.Web.Configuration;
using System.Net;
using System.Collections.Specialized;
using System.Collections;
using Microsoft.SharePoint.Utilities;



namespace Sample
{
    class RemainderMail : SPJobDefinition
    {
        string siteURL = "ur sit url";
        public RemainderMail()
            : base()
        {
        }

        public RemainderMail(string jobName, SPService service, SPServer server, SPJobLockType targetType)
            : base(jobName, service, server, targetType)
        {
        }

        public RemainderMail(string jobName, SPWebApplication webApplication)
            : base(jobName, webApplication, null, SPJobLockType.ContentDatabase)
        {
            this.Title = "Sending Remainder Mail TimerJob";
        }
        public override void Execute(Guid contentDbId)
        {
            SendingRemainderMails();
        }
        public void SendingRemainderMails()
        {
            using (SPSite oSite = new SPSite(siteURL))
            {
                using (SPWeb oWeb = oSite.OpenWeb())
                {
                    try
                    {
                        oWeb.AllowUnsafeUpdates = true;
                      
                        SPList oNotelist = oWeb.Lists["Noticelist"];
                        SPListItemCollection Notelisttemcoll = oRegNotelist.Items;

                        foreach (SPListItem item in regNotelisttemcoll)
                        {
                            string strMail = null;
                            if (Convert.ToString(item["NoticeStatus"]) == "Pending")
                            {
                                string noticeid = Convert.ToString(item["Title"]);
                               
                                SPGroup grp = oWeb.SiteGroups["Staff List"];

                                foreach (SPUser user in grp.Users)
                                {
                                    strMail = user.Email;
                                    sendEmail(strMail, noticeid);
                                }
                            }

                        }
                    }

                    catch (Exception ex)
                    {
                        ExceptionLog(ex);
                    }
                }
            }
        }
        protected void sendEmail(string strMail, string noticeid)
        {

            try
            {
                SmtpClient client = new SmtpClient();
                client.Host = "server name";
                NetworkCredential userCrendential = new NetworkCredential("username", "pwd");
                client.Credentials = userCrendential;
                System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();

                string strBody = "";
                mail.From = new MailAddress("abc@abc.com", "Title");
                mail.Bcc.Add("abc@abc.com");
                mail.To.Add(strMail);
                mail.Subject = "--subject--";
                mail.Body = "Dear Sir/Madam," + "\r\n\n" + strBody + "\r\n" + siteURL + "SitePages/notice.aspx?NoticeID=" + noticeid + "\r\n\n\n\n" + "Thanks," + "\r\n" + "Team.";
                client.Send(mail);
                saveEmail("Sent", strMail,noticeid);
            }
            catch (Exception ex)
            {
                using (SPSite oSite = new SPSite(siteURL))
                {
                    using (SPWeb oWeb = oSite.OpenWeb())
                    {
                        saveEmail("Failed", strMail, noticeid);
                        ExceptionLog(ex);
                    }
                }
            }
        }

public void saveEmail(string emailStatus, string strMail, string noticeid)
        {
            using (SPSite oSite = new SPSite(siteURL))
            {
                using (SPWeb oWeb = oSite.OpenWeb())
                {
                    try
                    {

                        oWeb.AllowUnsafeUpdates = true;
                        SPUser oUser = oWeb.CurrentUser;
                        SPList lstEmail = oWeb.Lists["EMailLog"];
                        SPListItem itemadd = lstEmail.Items.Add();
                        SPFieldCollection fldColl = lstEmail.Fields;

                        StringDictionary headers = new StringDictionary();

                        string strBody = "";

                        headers.Add("to", strMail);
                        headers.Add("from", "ur email ");
                        headers.Add("subject", "title");
                        headers.Add("content-type", "text/html");

                        string bodyText = "Dear Sir/Madam," + "\r\n\n" + strBody + "\r\n" + siteURL + "SitePages/Notice.aspx?NoticeID=" + noticeid + "\r\n\n\n\n" + "Thanks," + "\r\n" +  Team.";
                        itemadd["Body"] = bodyText;

                        foreach (DictionaryEntry entry in headers)
                        {

                            switch (entry.Key.ToString())
                            {
                                case "to":
                                    itemadd["MailTo"] = entry.Value.ToString();
                                    break;
                                case "subject":
                                    itemadd["Subject"] = entry.Value.ToString();
                                    break;
                                case "content-type":
                                    itemadd["MessageType"] = entry.Value.ToString();
                                    break;
                                case "from":
                                    itemadd["Title"] = entry.Value.ToString();
                                    break;
                            }

                        }

                        itemadd["DateTime"] = DateTime.Now.ToShortDateString();
                        itemadd["Status"] = emailStatus;
                        itemadd.Update();
                        oWeb.AllowUnsafeUpdates = false;
                    }
                    catch (Exception ex)
                    {
                        ExceptionLog(ex);
                    }
                }
            }

        }