RFC 822 – Format of Text Messages

2. Null Line for Separator

Date: Fri, 25 Sep 1998

From: rshirey@bbn.com

To: skent@bbn.com

Subject: Company Picnic

Cc: cparsons@bbn.com

1. Header Fields

Steve,

Please, don’t forgetthe watermelon and the

marshmallows!

- Rob -

3. Body (Optional)

SMTP “DATA” Contents

• Message Header Fields

  • rigid format for each:
    fld-name ":" [ fld-body ] CRLF

• Message Body

  • no format specified
  • no provision for encoding structured text, drawings, facsimile, speech, or other non-text content
  • RFC 821 requires 7-bit US-ASCII, all lines <= 998 octets + CR(13) + LF (10), and no NULs (00).

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