Just a quick note, that if you have any custom spamassassin config files, you should remove Osirusoft from the real time black hole list. It's gone down and doesn't look like it's coming back up. It's also marking all IP's as being spammers.
You can add:
score RCVD_IN_OSIRUSOFT_COM 0
score X_OSIRU_DUL 0.0
score X_OSIRU_DUL_FH 0.0
score X_OSIRU_OPEN_RELAY 0.0
score X_OSIRU_SPAMWARE_SITE 0.0
score X_OSIRU_SPAM_SRC 0.0
to your spamrc file to disable this black hole list completely.
If you don't have a custom spamrc (i.e. one you generated through shell or a custom .qmail file -- any changes from the mail admin tool are ok), then you are ok as we've updated the server wide spamrassassin configuration to ignore this rbl.
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