Update: All fixed now.
I just installed a kernel update on our rsync and mail server and it seems we
have broken hardware so it is unable to reboot right now. Mailing lists are
running on a different system however you need to use the `lists.archlinux.org`
domain rather than `archlinux.org`. So for arch-general you'd use `arch-
general(a)lists.archlinux.org`. Mails sent to the normal domain will go through
once the server is up again.
The rsync master will stay unavailable for now.
I've asked the hoster to look into the issue, but I can't currently estimate
when I'll get a reply/fix.
Sorry for the inconvenience, Florian