Usually, courtesy and some common sense will prevent you from getting into hot water, either with others on the mailing list or with the list owner. After all, we are all mainly interested in a free, informative discussion of paranormal and fringe-science ideas, preferably without having to wade through tons of irrelevant and boring postings in the process.
These rough guidelines might help you:
set skeptic mail digestto listproc@listproc.hcf.jhu.edu.
Digests can be convenient to delete all the day's message traffic at once if you feel disinclined to read it, or if the number of messages received in a day is a problem for you.
Sending "set skeptic mail ack" reverts to the usual operation; individual mail received as posted. Using "noack" istead of "ack" means that copies of mail originating from you will not be sent back to you.
set skeptic mail postponeto listproc@listproc.hcf.jhu.edu. This'll suspend your mail, while keeping you on the list. This is safer than signing off and rejoining later. When you want to start receiving mail again, use:
set skeptic mail ack(or "set skeptic mail digest".) Note that you shouldn't include names or anything in the commands, they're perfectly fine exactly as written.
unsubscribe skepticto listproc@listproc.hcf.jhu.edu.
The way to check if something like this is going on is to send
set skepticto listproc@listproc.hcf.jhu.edu. If you find you're not subscribed, you have to rejoin the list. If you see that your mail is set to "postpone," sending
set skeptic mail ack(or "set skeptic mail digest") will restart your list mail.
If you get no reply at all, this probably means the list server is down. In that case, all you can do is wait. The list owner will be aware of the problem, and is probably working to get things going again.
get skeptic logYYMMto listproc@listproc.hcf.jhu.edu, the YYMM being a year and month, like "0211" for November 2002.
ListProc only keeps archive for the past year or two of postings, so you may find older files you request do not exist. Also, be forewarned that any archive file you retrive will be large.
The list is set so that, if messages posted to it have a "Reply-To:" mail header, it keeps it, if not, it puts in a "Reply-To:" header directing replies to SKEPTIC. The idea is to let subscribers choose to direct replies off-list when appropriate. For example, you might request some information, but do not need replies broadcast to the whole list. In that case, you would set "Reply-To:" your own e-mail address.
To use this feature, just add the line "Reply-To: xxx@yyy" to the headers of your outgoing mail. How you would go about doing this depends on your mail system.