email list rules and guidelines, attachments?

[Steve D]

Regarding lilypond-user, are there guidelines for posting, whether 
attachments are allowed, what kind of attachments are allowed, etc.?

In searching the archives I found that PNG images were at one time 
discouraged (during the first quarter of 2004). If PNG or GIF images are 
now allowed (to illustrate notation problems/solutions), must they not 
exceed a certain filesize? Should they be attached "inline" or "as an 
attachment" (would that be Base64-encoded MIME?) in one's email program.

I recently solved one of my own notation problems and wished to attach a 
PNG image as well as include an annotated excerpt from the .ly file to 
illustrate how I solved the problem. Although I could upload a PNG to my 
own webspace and provide a link, that may not be as permanent for the 
email list archives since my webspace and its contents may change.

Thank you,

Steve D, NM US