how to set up sendmail to accept only whitelist?

Chris W. Parker cparker at swatgear.com
Thu May 20 21:43:24 UTC 2004


hello.

currently, part of my spam strategy is to take advantage of the
blacklist feature of sendmail*. however, i read somewhere recently (and
it made a lot of sense to me) to accept email only sent to valid email
addresses and reject the rest. lately i've notied a lot more random
usernames being prepended to @swatgear.com.

my setup is the following:

internet => sendmail w/ spamassassin => exchange 2k


can someone tell me what this is called and where i can read a
document(s) on how to get it working?



thanks,
chris.





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