Gets or sets the Message-ID header of the message.

Property Value

A string containing the Message-ID. For newly created messages, it's an empty string; for existing messages (received from mail servers, loaded from disk, etc), it's set from the Message-ID header value during parsing the message.

Remarks

During sending the message or submitting it to the pickup folder, this property is set to a new unique value (unless MailMessage.Builder.SetMessageIDOnSend is false).

You can also set Message-ID manually using SetUniqueMessageID method.

In MIME, Message-ID value is enclosed in angle brackets (<>). This property returns Message-ID value without angle brackets. Also, if you assign a new value with trailing angle brackets, they will be removed from MessageID value. However, the angle brackets will appear in the generated MIME source when the message gets built.

Note    Message-ID (MID) is NOT the same as Unique-ID (UID) which is assigned to each message in the mailbox by the POP3 or IMAP4 server.

Example

This sample loads the message from .EML file and displays the Message-ID of this message.

[C#]
// To use the code below, import MailBee namespaces at the top of your code.
using MailBee;
using MailBee.Mime;

// The actual code (put it into a method of your class)

// Load the message from file.
MailMessage msg = new MailMessage();
msg.LoadMessage(@"C:\Docs\TestMail.eml");

// Show the Message-ID.
Console.WriteLine("The message ID is " + msg.MessageID);

[Visual Basic]
' To use the code below, import MailBee namespaces at the top of your code.
Imports MailBee
Imports MailBee.Mime

' The actual code (put it into a method of your class)

' Load the message from file.
Dim msg As New MailMessage
msg.LoadMessage("C:\Docs\TestMail.eml")

' Show the Message-ID.
Console.WriteLine("The message ID is " & msg.MessageID)

See Also

MailMessage Class | MailBee.Mime Namespace | SetMessageIDOnSend

---