InternetAddressName Property

public string? Name { get; set; }

Property Value

A name is optional and is typically set to the name of the person or group that own the internet address.

For example, the Name property of the following MailboxAddress would be "John Smith".

John Smith <j.smith@example.com>

Likewise, the Name property of the following GroupAddress would be "undisclosed-recipients".

undisclosed-recipients: Alice <alice@wonderland.com>, Bob <bob@the-builder.com>;

Leading and trailing ASCII spaces, tabs and line breaks are removed from the name when it is set.

Reference