[SunRescue] Off topic mail question

[Martin Frost]

Tim wrote:

> What RFC details what should be, and what is optional in an email
> header?, or better yet, is there a man page?

RFC822, updated by RFC1123, RFC1138, RFC1148, RFC1327, and RFC2156.

RFC1123 is simply a summary of `Requirements for Internet Hosts';
the others details specific extensions or mappings from different
systems (mainly X.400). RFC822 is the big one.

--m