EMERGENCY - need to secure my server against an ongoing SPAMMER

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Sorry for the brevity here but I woke this morning to find my
mailserver sending 1000+ rejected email notices to postmaster@, and it
was increasing by the minute. I have shut down Sendmail and am
removing all relay permissions (I hope) but have a few issues that
need to be resolved quickly before going back online - knowing the
spammer will be retrying and my legitimate users are losing services.

1. There are 700+ emails sitting in the outgoing queue, I am using
WebMin to delete them but at 20 at-a-time it is useless. I need a
command line that will do it without causing more damage.

2. MySql is shut down for some reason, I don't know if it's related to
the attack. "service msqld status" returns "msqld dead but subsys
locked"

thanks for any help in advance,
bob


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