Well, harp-l finally brought our mail/web server to it's knees last week. There was an Internet wide disruption in routing, which caused a bunch of stuff to be queued up. After 48 hours the routing problem was cured, but by that time our server was trying to run over 200 incarnations of sendmail, with around 600Kb of RAM and 1.5Mb of virtual backing store used for each one. Do the math, and you'll see that this doesn't leave a lot of the 128Mb of RAM on our server free for anything else.
That's the bad news.
The good news is that we have finally commissioned our "new" mailing list server. It's an old DECStation 5000 running Ultrix 4.3, but it has 110Mb of RAM, roughly Pentium 90 performance, and it was free. I had to stump up personally for the disks (y'all owe me $870!!!!!), but it came with everything else.
It's now up and running, and list-serving for another couple of large lists we operate out of here (for Tottenham Hotspurs soccer club fans, and Alpha NT users).
I'm happy enough with it's performance that I'm about to move harp-l out to it.
This will happen probably late tonight, and will almost certainly disrupt list traffic for a while. So PLEASE don't mail harp-l asking where all the mail is at ...