Re: SMTP DDoS

On Sat, 2003-08-09 at 18:50, Kip Sr. wrote:
> Hi everyone,

There are several commercial e-mail security out there which could handle this type of problem. As mentioned previously, some times your firewall will do application-level inspection on SMTP traffic and allow you to filter it (I believe that CheckPoint FW1 can do this, although I don't have any experience with it).

If your actual firewall doesn't have that functionality, investigate e-mail firewalls. There are several, such as IronMail from www.ciphertrust.com which can easily handle this situation. Anything with a DCC or DCC-like (IronMail has a much improved DCC-like system) blocking tool should totally eliminate the flood at your gateway and thus spare your Exchange server.

-- 
Brian Keefer


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