Hey Daniel - do you plan to support oauth?
Right now I only see options to pass username/password with the .SetCredentials helper.

var imapReceiver = ImapReceiver.Create(mailbox.IMAPServer + ":" + mailbox.IMAPPort)
                    .SetCredential(mailbox.IMAPUsername, mailbox.IMAPPassword)
                    .SetFolder(folder);

O365 IMAP now requires OAUTH - and mailkit does support it:

var confidentialClientApplication = ConfidentialClientApplicationBuilder
                .Create(mailbox.O365ClientId)
                .WithClientSecret(mailbox.O365ClientSecret)
                .WithAuthority(new Uri("https://login.microsoftonline.com/" + mailbox.O365TenantId + "/v2.0"))
                .Build();

      var authenticationResult = await confidentialClientApplication.AcquireTokenForClient(scopes).ExecuteAsync();

      var authToken = authenticationResult;
      var oauth2 = new SaslMechanismOAuth2(mailbox.Email, authToken.AccessToken);

      using (var client = new ImapClient(new ProtocolLogger("imapLog.txt")))
      {
          client.Connect("outlook.office365.com", 993, SecureSocketOptions.SslOnConnect);
          client.Authenticate(oauth2);
          var inbox = client.Inbox;
          inbox.Open(MailKit.FolderAccess.ReadOnly);
          Console.WriteLine("Total messages: {0}", inbox.Count);
          Console.WriteLine("Recent messages: {0}", inbox.Recent);
          client.Disconnect(true);

          Assert.True(inbox.Count > 0);
      }

Can I offer a pull request?

Thanks,
Max

Dear Daniel,

I am injecting the MailKitSimplifiedEmailReceiver in QuartzHostedService and using it in Quartz job, but due to following error Quartz job is not firing again, also the log is not being written:

warn: MailKitSimplified.Receiver.Services.LogFileWriterQueue[0]
Log queue cancelled while logs are still being written.
fail: Quartz.Core.QuartzSchedulerThread[0]
Runtime error occurred in main trigger firing loop.
System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'LoggerFactory'.
at Microsoft.Extensions.Logging.LoggerFactory.CreateLogger(String categoryName)
at Quartz.Simpl.MicrosoftLoggingProvider.GetLogger(String name)
at Quartz.Logging.LogProvider.GetLogger(String name)
at Quartz.Logging.LogProvider.GetLogger(Type type, String fallbackTypeName)
at Quartz.Core.JobRunShell..ctor(IScheduler scheduler, TriggerFiredBundle bundle)
at Quartz.Impl.StdJobRunShellFactory.CreateJobRunShell(TriggerFiredBundle bndle)
at Quartz.Core.QuartzSchedulerThread.Run()

Dear Daniel,

I am facing a arithmetic overflow issue while fetching the message summaries. Following are the details:

Exception:
System.OverflowException: 'Arithmetic operation resulted in an overflow.'

Code:
// Build uuid range to fetch
UniqueIdRange? range = new UniqueIdRange(new UniqueId((uint)startUID), UniqueId.MaxValue);

// Serach inbox for messages uid
IList? messageSummaries = await _mailFolderReader.GetMessageSummariesAsync(range, MessageSummaryItems.UniqueId | MessageSummaryItems.GMailThreadId | MessageSummaryItems.InternalDate | MessageSummaryItems.PreviewText | MessageSummaryItems.Envelope);

How can convert this configuration for ImapReceiver

            var client = new ImapClient();
            client.CheckCertificateRevocation = false;
            client.SslProtocols = SslProtocols.Tls | SslProtocols.Tls11 | SslProtocols.Tls12 | SslProtocols.Tls13;
            client.ServerCertificateValidationCallback = (s, c, h, e) => true;
            client.Connect(item.IMAPHost, item.IMAPPort, MailKit.Security.SecureSocketOptions.StartTls);
            client.Authenticate(item.Email, item.IMAPPassword);

Dear Daniel,

I am facing following error when i am added dependency injection in my .net Core MVC appliation:

ObjectDisposedException: Cannot access a disposed object. Object name: 'LoggerFactory'.

Microsoft.Extensions.Logging.LoggerFactory.CreateLogger(string categoryName)
Microsoft.AspNetCore.Authentication.AuthenticationHandler<TOptions>..ctor(IOptionsMonitor<TOptions> options, ILoggerFactory logger, UrlEncoder encoder, ISystemClock clock)
Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler..ctor(IOptionsMonitor<OpenIdConnectOptions> options, ILoggerFactory logger, HtmlEncoder htmlEncoder, UrlEncoder encoder, ISystemClock clock)
InvokeStub_OpenIdConnectHandler..ctor(object , object , IntPtr* )
System.Reflection.ConstructorInvoker.Invoke(object obj, IntPtr* args, BindingFlags invokeAttr)
System.Reflection.RuntimeConstructorInfo.InvokeWithManyArguments(RuntimeConstructorInfo ci, int argCount, BindingFlags invokeAttr, Binder binder, object[] parameters, CultureInfo culture)
System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, object[] parameters, CultureInfo culture)
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor<TArgument, TResult>.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument)
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache(ServiceCallSite transientCallSite, RuntimeResolverContext context)
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor<TArgument, TResult>.VisitCallSite(ServiceCallSite callSite, TArgument argument)
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine+<>c__DisplayClass2_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
Microsoft.AspNetCore.Authentication.AuthenticationHandlerProvider.GetHandlerAsync(HttpContext context, string authenticationScheme)
Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.<Invoke>g__Awaited|8_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task)
Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.HandleException(HttpContext context, ExceptionDispatchInfo edi)
Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.<Invoke>g__Awaited|8_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

As a follow-up to #22, I should also add MoveMessagesAsync to ImapReceiver.

Hello,

I want to capture all conversations of an email as a list, can we do this?

What I want to do is to create a view, a user interface, that shows all conversations in an email history.

Thanks.

Hello!
How i can monitor inbox folders from more than 1 email (for example, 5)?
And how i can configure it in appsettings.json?

If I have a template but part of the content changes dynamically, can I support the rendering of dynamic templates? I think this feature can be added.

Kudos to your great library - makes it super easy to consume! 👍

Do you plan to add an API to store messages in folders? In my case I want to store them in the DRAFT folder.

Cheers and thanks,
Max

How do I tag and delete messages?

Dear,

I am constructing reply email as following:

MimeMessage replyMessage = await messageSummary.GetReplyMessageAsync(emailContent, true, true, true);
await _smtpSender.SendAsync(replyMessage);

But some how when i am receiving the email in my Outlook and try to reply, somehow it adds an extra email address in "To", which is "noreply@localhost". Can you highlight where i am going wrong.

Also the real requirement that in reply email content i need to add all of the previous email bodies as you can see in Outlook.

Hi Daniel,

I am downloading the single mime message with the following code:

// Fetch email message against presisted uid
MimeMessage mimeMessage = await _mailFolderReader.GetMimeMessageAsync(new UniqueId(uniqueId), cancellationToken);

Can you please guide how can I download mime message without attachments. I want to download attachment later on demand.

Hello, does your product support multi-sending mail to clients? [email protected];[email protected]

Dear,

I need to monitor IMAP folder "ALL" for Gmail IMAP. I am passing "ALL" in SetFolder function but it is throwing exception that "Folder not found".
Actually i need to monitor Gmail "Inbox" and "Sent" folder because i have to fetch full conversations "Received & Replied".

Add an Action Exception template to the writer. The aim is to use the "await _writeEmail.Exception(ex).SendAsync();" method directly after having set the action for it in the builder.

Similarly, check the following:

Add DefaultFrom method missing in IEmailWriter interface. The aim is to use "await _writeEmail.To("test@localhost").SendAsync();" method directly without using the From method.

Hello!
I have a problem: mailkit.net.imap.imapprotocolexception the imap server has unexpectedly disconnected.
And i found a solution on stackoverflow: https://stackoverflow.com/questions/42292617/the-imap-server-has-unexpectedly-disconnected-using-993-port-and-mailkit
After that i started digging in your code and found an option to hand over this value from appsettings (if i clearly understand).

GetMessageSummariesAsync method is slow in v2.5.6.

#32 (comment)

Hi @danzuep. I want to get MimeMessage while processing arrived message to get attachments and text from it and get error:

System.InvalidOperationException: 'The ImapClient is currently busy processing a command in another thread. Lock the SyncRoot property to properly synchronize your threads.'

Here's my code to reproduce:

using MailKit;
using MailKitSimplified.Receiver.Services;

using var imapReceiver = ImapReceiver.Create("imapHost:imapPort")
    .SetCredential("login", "applicationPassword");

try
{
    await imapReceiver.ConnectAuthenticatedImapClientAsync();
    await imapReceiver.ConnectMailFolderAsync();

    await imapReceiver.MonitorFolder
       .SetMessageSummaryItems(MessageSummaryItems.Full | MessageSummaryItems.BodyStructure | MessageSummaryItems.UniqueId)
       .SetIgnoreExistingMailOnConnect(false)
       .OnMessageArrival(OnArrivalAsync)
       .IdleAsync();
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

async Task OnArrivalAsync(IMessageSummary messageSummary)
{
    try
    {
        var mimeMessage = await imapReceiver.ReadMail.GetMimeMessageAsync(messageSummary.UniqueId);
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
}

Or did I miss something and need to receive messages in a different way?

Follow up question for #9 if this is the 'best' way possible for MailKitSimplified.

Would like to automatically process mails, and then mark them as Seen or Delete them. It looks like the changing of flags isn't implemented in MailKitSimplified, but it's also not possible to retrieve the (possible) underlying ImapClient.

This workaround works, but requires and extra connection.

Is this the best if I would like to use MailKitSimplified?

Proof of concept code:

CancellationTokenSource cancellationTokenSource = new(TimeSpan.FromMinutes(1));

Console.WriteLine("Connecting..");

using ImapReceiver imapReceiver = ImapReceiver.Create(ServerHost, ServerPort)
    .SetCredential(Username, Password)
    .SetProtocolLog("Logs/ImapClient.txt")
    .SetFolder("INBOX");

ImapClient imapClient = new();
imapClient.Connect(ServerHost, ServerPort);
imapClient.Authenticate(Username, Password);
imapClient.Inbox.Open(FolderAccess.ReadWrite);

Console.WriteLine("Connected");

IMailFolderMonitor mailFolderMonitor = imapReceiver.MonitorFolder.SetMessageSummaryItems(MessageSummaryItems.All);

await mailFolderMonitor.OnMessageArrival(m =>
{
    Console.WriteLine($"[{m.UniqueId}] - {m.Envelope.From} {m.NormalizedSubject}");
    imapClient.Inbox.AddFlags(m.UniqueId, MessageFlags.Seen, true);
}).IdleAsync(cancellationTokenSource.Token);

There's been a build-up of methods that are now marked with the [Obsolete] attribute, remove the dead code associated with them and bump the version.

Hi, @danzuep

I've checked you implementation of IAsyncDisposable and IDisposable for IMailFolderReader and It seems to that DisposeAsync should call _imapReceiver?.DisposeAsync() instead of disconnecting since IImapReceiver also implements IAsyncDisposable and IDisposable.

But my issue is not about that, It's more about design. The problem is still here. We can't dispose ReadMail this way. These objects are still being created and stored in memory. But If we will dispose ReadMail object after first read operation then we get ObjectDisposedException on the next call, because _imapReceiver will be disposed.

Therefore, you need to somehow create an MailFolderReader in the ReadMail property that will not refer to the main object _imapReceiver so that we can dispose of it after use.

Since that I prefer to create an ImapClient per message for fetching needed mime message by UniqueId from IMessageSummary object and after all dispose it.

private async Task<IImapClient> CreateImapClientAsync()
{
    var imapClient = new ImapClient()
    {
        Timeout = (int)TimeSpan.FromMinutes(1).TotalMilliseconds
    };

    await imapClient.ConnectAsync(EmailClientConfiguration.ImapIp, EmailClientConfiguration.ImapPort);
    await imapClient.AuthenticateAsync(EmailClientConfiguration.Login, EmailClientConfiguration.Password);
    await imapClient.Inbox.OpenAsync(FolderAccess.ReadOnly);

    return imapClient;
}

private async Task OnArrivalAsync(IMessageSummary messageSummary)
{
    try
    {
        using var fetcher = await CreateImapClientAsync();
        var fetchedMessage = await fetcher.Inbox.GetMessageAsync(messageSummary.UniqueId, _cancel.Token);
        // do some processing things with fetched message
    }
    catch (Exception ex)
    {
        _logger.LogError(ex, "An error occured while handling arrived message with id: {uniqueId} for email client with id: {emailClientId}!",
            messageSummary.UniqueId.Id, EmailClientConfiguration.ClientId);
    }
}

Hi. @danzuep. I checked your bug fix, but It seems to me _fetchReceiver and _fetchFolder need also reconnecting and reopening?

This part of the code, it seems to me, may break if _fetchReceiver or _fetchFolder closes at some point.