For the old school Fidonet mail network, the Fidonet Technical Standards
provided early guidelines.
I have no experience with Fidonet. It seems like an interesting community, with
lots of in-text special rules and procedures. IETF standards cannot adopt much
of this, but some of it may be useful. I have tried to write some RFCs which
are guidelines more than standards, but never got them finished enough to have
it published as an RFC.
Examples of such un-finished documents, which I have written but never got
ready for RFC status, are:
The IETF Golden rules: http://people.dsv.su.se/~jpalme/ietf/golden-rule/
Putting tables in e-mail messages:
Advice on implementing html-formatted e-mail messages:
Professor emeritus Jacob Palme <jpalme(_at_)dsv(_dot_)su(_dot_)se> (Stockholm
for more info see URL: http://www.dsv.su.se/jpalme/
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