using c# .net librarires to check for IMAP message

Question

Does anyone have any sample code in that makes use of the .Net framework that connects to googlemail servers via IMAP SSL to check for new emails?

Answer 1

LumiSoft.ee - works great, fairly easy. Compiles with .NET 4.0.

Here are the required links to their lib and examples. Downloads Main:

http://www.lumisoft.ee/lsWWW/Download/Downloads/

Code Examples:

are located here: ...lsWWW/Download/Downloads/Examples/

.NET:

are located here: ...lsWWW/Download/Downloads/Net/

I am putting a SIMPLE sample up using their lib on codeplex (IMAPClientLumiSoft.codeplex.com). You must get their libraries directly from their site. I am not including them because I don't maintain their code nor do I have any rights to the code. Go to the links above and download it directly. I set LumiSoft project properties in my VS2010 to build all of it in .NET 4.0 which it did with no errors. Their samples are fairly complex and maybe even overly tight coding when just an example. Although I expect that these are aimed at advanced level developers in general.

Their project worked with minor tweaks. The tweaks: Their IMAP Client Winform example is set in the project properties as "Release" which prevents VS from breaking on debug points. You must use the solution "Configuration Manager" to set the project to "Active(Debug)" for breakpoints to work. Their examples use anonymous methods for event handlers which is great tight coding... not real good as a teaching tool. My project uses "named" event method handlers so you can set breakpoints inside the handlers. However theirs is an excellent way to handle inline code. They might have used the newer Lambda methods available since .NET 3.0 but did not and I didn't try to convert them.

From their samples I simplified the IMAP client to bare minimum.

Answer 2

As the author of the above project i can say that yes it does support SSL.

I am currently working on a new version of the library that will be completely asynchronous to increase the speed with which it can interact with IMAP servers.

That code, while not complete, can be downloaded, along with the original synchronous library (which also supports SSL), from the code plex site linked to above.

Answer 3

Cross posted from the other similar question. See what happens when they get so similar?

I've been searching for an IMAP solution for a while now, and after trying quite a few, I'm going with AE.Net.Mail.

There is no documentation, which I consider a downside, but I was able to whip this up by looking at the source code (yay for open source!) and using Intellisense. The below code connects specifically to Gmail's IMAP server:

// Connect to the IMAP server. The 'true' parameter specifies to use SSL
// which is important (for Gmail at least)
ImapClient ic = new ImapClient("imap.gmail.com", "[e-mail]", "pass",
                ImapClient.AuthMethods.Login, 993, true);
// Select a mailbox. Case-insensitive
ic.SelectMailbox("INBOX");
Console.WriteLine(ic.GetMessageCount());
// Get the first *11* messages. 0 is the first message;
// and it also includes the 10th message, which is really the eleventh ;)
// MailMessage represents, well, a message in your mailbox
MailMessage[] mm = ic.GetMessages(0, 10);
foreach (MailMessage m in mm)
{
    Console.WriteLine(m.Subject);
}
// Probably wiser to use a using statement
ic.Dispose();

I'm not affiliated with this library or anything, but I've found it very fast and stable.

Answer 4

Another alternative: HigLabo

https://higlabo.codeplex.com/documentation

Good discussion: https://higlabo.codeplex.com/discussions/479250

//====Imap sample================================//
//You can set default value by Default property
ImapClient.Default.UserName = "your server name";
ImapClient cl = new ImapClient("your server name");
cl.UserName = "your name";
cl.Password = "pass";
cl.Ssl = false;
if (cl.Authenticate() == true)
{
    Int32 MailIndex = 1;
    //Get all folder
    List<ImapFolder> l = cl.GetAllFolders();
    ImapFolder rFolder = cl.SelectFolder("INBOX");
    MailMessage mg = cl.GetMessage(MailIndex);
}

//Delete selected mail from mailbox
ImapClient pop = new ImapClient("server name", 110, "user name", "pass");
pop.AuthenticateMode = Pop3AuthenticateMode.Pop;
Int64[] DeleteIndexList = new.....//It depend on your needs
cl.DeleteEMail(DeleteIndexList);

//Get unread message list from GMail
using (ImapClient cl = new ImapClient("imap.gmail.com")) 
{
    cl.Port = 993;
    cl.Ssl = true; 
    cl.UserName = "xxxxx";
    cl.Password = "yyyyy";
    var bl = cl.Authenticate();
    if (bl == true)
    {
        //Select folder
        ImapFolder folder = cl.SelectFolder("[Gmail]/All Mail");
        //Search Unread
        SearchResult list = cl.ExecuteSearch("UNSEEN UNDELETED");
        //Get all unread mail
        for (int i = 0; i < list.MailIndexList.Count; i++)
        {
            mg = cl.GetMessage(list.MailIndexList[i]);
        }
    }
    //Change mail read state as read
    cl.ExecuteStore(1, StoreItem.FlagsReplace, "UNSEEN")
}


//Create draft mail to mailbox
using (ImapClient cl = new ImapClient("imap.gmail.com")) 
{
    cl.Port = 993;
    cl.Ssl = true; 
    cl.UserName = "xxxxx";
    cl.Password = "yyyyy";
    var bl = cl.Authenticate();
    if (bl == true)
    {
        var smg = new SmtpMessage("from mail address", "to mail addres list"
            , "cc mail address list", "This is a test mail.", "Hi.It is my draft mail");
        cl.ExecuteAppend("GMail/Drafts", smg.GetDataText(), "\\Draft", DateTimeOffset.Now); 
    }
}

//Idle
using (var cl = new ImapClient("imap.gmail.com", 993, "user name", "pass"))
{
    cl.Ssl = true;
    cl.ReceiveTimeout = 10 * 60 * 1000;//10 minute
    if (cl.Authenticate() == true)
    {
        var l = cl.GetAllFolders();
        ImapFolder r = cl.SelectFolder("INBOX");
        //You must dispose ImapIdleCommand object
        using (var cm = cl.CreateImapIdleCommand()) Caution! Ensure dispose command object
        {
            //This handler is invoked when you receive a mesage from server
            cm.MessageReceived += (Object o, ImapIdleCommandMessageReceivedEventArgs e) =>
            {
                foreach (var mg in e.MessageList)
                {
                    String text = String.Format("Type is {0} Number is {1}", mg.MessageType, mg.Number);
                    Console.WriteLine(text);
                }
            };
            cl.ExecuteIdle(cm);
            while (true)
            {
                var line = Console.ReadLine();
                if (line == "done")
                {
                    cl.ExecuteDone(cm);
                    break;
                }
            }
        }
    }
}