/// <summary>
/// Toes the mail message ex.
/// </summary>
/// <param name="entity">The entity.</param>
/// <returns></returns>
private MailMessageEx ToMailMessageEx(MimeEntity entity)
{
if (entity == null)
{
throw new ArgumentNullException("entity");
}
//parse standard headers and create base email.
MailMessageEx message = MailMessageEx.CreateMailMessageFromEntity(entity);
if (!string.IsNullOrEmpty(entity.ContentType.Boundary))
{
message = MailMessageEx.CreateMailMessageFromEntity(entity);
BuildMultiPartMessage(entity, message);
} //parse multipart message into sub parts.
else if (string.Equals(entity.ContentType.MediaType, MediaTypes.MessageRfc822, StringComparison.InvariantCultureIgnoreCase))
{
//use the first child to create the multipart message.
if (entity.Children.Count < 0)
{
throw new Exception("Invalid child count on message/rfc822 entity.");
}
//create the mail message from the first child because it will
//contain all of the mail headers. The entity in this state
//only contains simple content type headers indicating, disposition, type and description.
//This means we can't create the mail message from this type as there is no
//internet mail headers attached to this entity.
message = MailMessageEx.CreateMailMessageFromEntity(entity.Children[0]);
BuildMultiPartMessage(entity, message);
} //parse nested message.
else
{
message = MailMessageEx.CreateMailMessageFromEntity(entity);
BuildSinglePartMessage(entity, message);
} //Create single part message.
return(message);
}
