Box fell over for some reason at some point. Rebooted and back up again now.
Any probs mail me at gordonj@newswall.org.uk AND gordon.johnston@energis.com AND post a reply to this message if possible.
Obelisk was down from Saturday afternoon until this (Monday) morning. A mail had got caught up in the mail sorting script. Unfortunatly a remote reboot failed as the server did not initialise the LVM drives before attempting to mount them. This is now fixed, and I've disabled automounting of the volumes in any case.
I need to re-write the mail sorting script at some point to make it more robust. It'll probably be when I'm back from holiday now.
SASL has been patched. See http://security.gentoo.org/glsa/glsa-200410-05.xml for details