A MessagePart is considered to be holding text in it's body if the MediaType starts either "text/" or is equal to "message/rfc822"
public bool IsText { public get; }
See Also
MessagePart Class | OpenPop.Mime Namespace
A MessagePart is considered to be holding text in it's body if the MediaType starts either "text/" or is equal to "message/rfc822"
MessagePart Class | OpenPop.Mime Namespace