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Sendmail Access DB Scalability

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http://www.unix.com – Hello, So here's what I am trying to accomplish. We have a sendmail server and we are trying to stop backscattering. One idea that we came up with to prevent this is to utilize sendmail's access database. Basically we'd have the first line bounce all mail coming in to our mail server to users in our domain. So for example if my domain is example.com: example.com REJECT After that, we'd have a list of users that we'll accept and relay through our servers, like so: [email protected] RELAY [email protected] RELAY [email protected] RELAY [email protected] RELAY ... To get thi (HowTos)