Library to parse mail files

Hi,
    What would be that best library/module for parsing a mail file.  I want to be able to extract the values for header tags as well as the body(including 'recieved by'). 

Thanks,
John

• Library to parse mail files by John Manko
• Re: Library to parse mail files by Wiggins d Anconia
• Re: Library to parse mail files by Kevin Old