[ot] anyone know of a good "sending accessible emails" guideline page?

[Ben Dougall]

does anyone know of a simple, explanatory web page, aimed at not too 
technical people, based on sending *accessible* email, and if really 
necessary attachments and the problems related to attachments 
(specifically inaccessibly, not viruses).

i'm looking for a nice concise web page that i can give the address to 
people who keep asking me about email attachments and reading email. 
more often than not, the problem is with the sender, so i'd like to 
find a web page that they can pass to people (who are more than likely 
not knowledgeable about computers) in the event of unreadable email and 
in particular unreadable attachments.

very often an attachment isn't needed (like attaching a ms word 
document when emails themselves are text) and i'd like to know about a 
web page explaining that thoroughly but simply.

anyone know of such a magical page?