Provides full support to asynchronous operating mode and event firing. Getting message header without downloading the whole message body. Abstracting header item. Providing methods to abstract most pop stuffs, such as Subject, Date, Sender, Recipients, CCs, Body text, Alternative body text, Attachments and more. Getting name and size of attachments. Saving attachments as another files. Getting message/attachment chunk. Supporting parsing multiple recipients and CCs. Providing methods to import/export message between email file and POPMSG object. Smartly determining message bodyformat.(TEXT/HTML/MULTIPLE-ALTERNAVTIVE) Automatically decoding data encoded by base64 or quoted-printable.