What is the definition of an Envelope, Body or Attachment for each protocol?
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What is the definition of an Envelope, Body or Attachment for each protocol?

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Article ID: 159521

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Updated On:

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Issue/Introduction

Contains Envelope, body and attachment definitions for SMTP, HTTP, IM, FTP, NNTP, and TCP.

Resolution

SMTP

Envelope – The headers of the email message
Body – The text of the email message
Attachments – Any files attached to the email message

HTTP

Envelope – The head element of the web page, containing the header information about the document, such as its title, keywords, description, and style sheet
Body – The content of the web page
Attachments – Any files transferred

IM

Envelope – The connection information
Body – The text of the conversation

FTP

Envelope – The connection information
Body – Autogenerated text such as "FTP transmission of file: attachment name (attachment size)"
Attachments – The files being transferred

NNTP

Envelope – The headers of the email message
Body – The text of the email message
Attachments –Any files transferred
 
TCP

Envelope – The connection information
Body – All of the strings extracted from the connection