System.Object
   Dart.PowerTCP.Mail.DeliveryStatusNotification
   Dart.PowerTCP.Mail.ImapResponse
   Dart.PowerTCP.Mail.ImapSearchParameter
   Dart.PowerTCP.Mail.Invoke
   Dart.PowerTCP.Mail.MailAddress
   Dart.PowerTCP.Mail.Mailbox
   Dart.PowerTCP.Mail.MessageBase
      Dart.PowerTCP.Mail.ImapMessage
      Dart.PowerTCP.Mail.PopMessage
   Dart.PowerTCP.Mail.NonMime
   Dart.PowerTCP.Mail.Proxy
   Dart.PowerTCP.Mail.Response
   Dart.PowerTCP.Mail.Segment
   Dart.PowerTCP.Mail.SmtpResult
   System.ApplicationException
      System.Exception
         Dart.PowerTCP.Mail.BusyException
         Dart.PowerTCP.Mail.InvalidParameterTypeException
         Dart.PowerTCP.Mail.ProtocolException
   System.Collections.ArrayList
      Dart.PowerTCP.Mail.Attachments
      Dart.PowerTCP.Mail.AttachmentStreams
      Dart.PowerTCP.Mail.CertificateStore
      Dart.PowerTCP.Mail.MailAddresses
      Dart.PowerTCP.Mail.MailboxCollection
      Dart.PowerTCP.Mail.MailHeader
      Dart.PowerTCP.Mail.PartList
         Dart.PowerTCP.Mail.MessagePartStreams
         Dart.PowerTCP.Mail.MessageStreams
         Dart.PowerTCP.Mail.MimeAttachmentStreams
      Dart.PowerTCP.Mail.Parts
   System.Collections.ReadOnlyCollectionBase
      Dart.PowerTCP.Mail.SimpleCollectionBase
         Dart.PowerTCP.Mail.ImapMessageCollection
   System.ComponentModel.Component
      System.MarshalByRefObject
         Dart.PowerTCP.Mail.Imap
         Dart.PowerTCP.Mail.Pop
         Dart.PowerTCP.Mail.Smtp
         Dart.PowerTCP.Mail.Tcp
   System.EventArgs
      Dart.PowerTCP.Mail.CertificateReceivedEventArgs
      Dart.PowerTCP.Mail.EndEventArgs
         Dart.PowerTCP.Mail.ImapMessageEventArgs
         Dart.PowerTCP.Mail.ImapResponseEventArgs
         Dart.PowerTCP.Mail.MailboxEventArgs
         Dart.PowerTCP.Mail.MessagePartEventArgs
      Dart.PowerTCP.Mail.ExceptionEventArgs
      Dart.PowerTCP.Mail.ImapProgressEventArgs
      Dart.PowerTCP.Mail.InvokeEventArgs
      Dart.PowerTCP.Mail.PopEventArgs
      Dart.PowerTCP.Mail.PopProgressEventArgs
      Dart.PowerTCP.Mail.ProgressEventArgs
      Dart.PowerTCP.Mail.SegmentEventArgs
      Dart.PowerTCP.Mail.SmtpEventArgs
   System.IO.Stream
      System.MarshalByRefObject
         Dart.PowerTCP.Mail.CodingStream
            Dart.PowerTCP.Mail.AttachmentStream
               Dart.PowerTCP.Mail.MimeAttachmentStream
            Dart.PowerTCP.Mail.MessagePartStream
         Dart.PowerTCP.Mail.EnhancedStream
            Dart.PowerTCP.Mail.PipeStream
               Dart.PowerTCP.Mail.SegmentedStream
            Dart.PowerTCP.Mail.TcpStream
         Dart.PowerTCP.Mail.MessageStream
   System.MarshalByRefObject
      Dart.PowerTCP.Mail.Certificate
   System.Text.Encoding
      Dart.PowerTCP.Mail.ImapUTF7Encoding

Reference

Dart.PowerTCP.Mail Assembly