🚀 go-pugleaf

< From: povlphp@uts.uni-c.dk (Povl H. Pedersen)
< Header says it all. I want the format of the mbox file that is tandard on
< unix systems. I would prefer not to parse lots of source code to find it.

There are two types of headers: UNIX Postmark headers and RFC 822 headers.

The UNIX Postmark headers are the lines which start with "From " and ">From ".
They look like

	From <user> <date-string>
or
	From <user> <date-string> remote from <system>

The RFC 822 headers are the Keyword: style headers.

A mailbox consists of multiple messages, one after the other. A mail message
looks like this:

	1		"From " UNIX postmark header
	0 or more	">From " UNIX postmark headers
	0 or more	RFC 822 headers
	0 or 1		blank line
	the message body

On some UNIX systems, if one of the RFC 822 headers is a "Content-Length:"
header, then the message body consists of exactly the number of bytes
specified in that header.

If there is no "Content-Length:" header, then the next message is started by
a line which starts with the characters "From ".

I hope this helps.

					Tony Hansen
			    hansen@pegasus.att.com, tony@attmail.com
				att!pegasus!hansen, attmail!tony