PGP email message format/shape

Hi,
i am just wondering how does the encrypted email message using PGP looks like, does it encrypt and sign the message only or also attachements, but what about the headers and envelope of the message ??? plz can any one answer me.
Thanks alot.

A good read would be: (Non-Technical) PGP FAQ

But to answer some of your questions directly..
The envelope and headers can't be encrypted, the mail servers can't handle that (RFC 821)..
PGP however can encrypt plaintext or HTML formated mails and attachments.

thanks alot the_JinX but can u provide me with more advanced documents, tutorials or articles "not about cryptographic algorithms but about the format itself may be some snapshots" :) and thanks for the letting me know that PGP only encryptes message body and attachements.

See the advanced section of this page:

http://www.gnupg.org/(en)/documentation/faqs.html

Happy reading.

--TH13

thanks alot :D