ORBZ ?

I don't know if anyone else uses the inputs/outputs.orbz.org filters for
your mail server, but I ran into a little problem today with them. For
some reason, their site went down, even though you could ping it, it was
down, and then I realized I wasn't getting any mail, after doing some
research, I found out, it was blocking all the mails I was getting;

Mar 20 22:50:42 stimpy sendmail[30156]: g2L5oget030156:
ruleset=check_rcpt, arg1=<dalnet@dal.net>, relay=dalnet@localhost
[127.0.0.1], reject=550 5.7.1 <dalnet@dal.net>... Mail from 127.0.0.1
refused by blackhole site inputs.orbz.org
Mar 20 22:50:42 stimpy sendmail[30156]: g2L5ogev030156:
ruleset=check_rcpt, arg1=<dalnet@stimpy.nerdie.org>,
relay=dalnet@localhost [127.0.0.1], reject=550 5.7.1
<dalnet@stimpy.nerdie.org>... Mail from 127.0.0.1 refused by blackhole
site inputs.orbz.org
Mar 20 22:50:42 stimpy sendmail[30156]: g2L5ogex030156:
ruleset=check_rcpt, arg1=<postmaster@stimpy.nerdie.org>,
relay=dalnet@localhost [127.0.0.1], reject=550 5.7.1
<postmaster@stimpy.nerdie.org>... Mail from 127.0.0.1 refused by blackhole
site inputs.orbz.org
Mar 20 22:51:57 stimpy sendmail[30180]: g2L5pvet030180:
ruleset=check_rcpt, arg1=<dalnet@stimpy.nerdie.org>,
relay=dalnet@localhost [127.0.0.1], reject=550 5.7.1
<dalnet@stimpy.nerdie.org>... Mail from 127.0.0.1 refused by blackhole
site inputs.orbz.org
Mar 20 22:51:57 stimpy sendmail[30180]: g2L5pvev030180:
ruleset=check_rcpt, arg1=<dalnet@stimpy.nerdie.org>,
relay=dalnet@localhost [127.0.0.1], reject=550 5.7.1
<dalnet@stimpy.nerdie.org>... Mail from 127.0.0.1 refused by blackhole
site inputs.orbz.org
Mar 20 22:51:57 stimpy sendmail[30180]: g2L5pvex030180:
ruleset=check_rcpt, arg1=<postmaster@stimpy.nerdie.org>,
relay=dalnet@localhost [127.0.0.1], reject=550 5.7.1
<postmaster@stimpy.nerdie.org>... Mail from 127.0.0.1 refused by blackhole
site inputs.orbz.org
Mar 20 22:53:05 stimpy sendmail[30196]: g2L5r2et030196:
ruleset=check_rcpt, arg1=<root@nerdie.org>, relay=lakemtao03.cox.net
[68.1.17.242], reject=550 5.7.1 <root@nerdie.org>... Mail from 68.1.17.242
refused by blackhole site inputs.orbz.org
Mar 20 22:53:10 stimpy sendmail[30199]: g2L5rAet030199:
ruleset=check_rcpt, arg1=<tyler@tylerhall.net>, relay=lakemtao03.cox.net
[68.1.17.242], reject=550 5.7.1 <tyler@tylerhall.net>... Mail from
68.1.17.242 refused by blackhole site inputs.orbz.org
Mar 20 22:56:15 stimpy sendmail[30228]: g2L5uFlO030228:
ruleset=check_rcpt, arg1=<root@nerdie.org>,

So, I'm wondering, if the site is down, does the filter freak out and
block everything, or what? Such failover service..

Did anyone else run into this problem tonight?