Authenicating users

[Michele Neylon:: Blacknight]

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Doc Schneider wrote:
> I'm running MS on my secondary MX server and was wondering if there is a
> way for it to (possibly through a map file?) find the valid users for
> the domains I secondary. I would like  to stop the spammers from hitting
> me with, literally, thousands of dictionary (unknown users) attacks?
>
> I'm using all kinds of RBLs and blacklists but still getting a lot
> slipping through.
>
> Oh running Sendmail 8.13.4 on it as well. With delay_checks, greet_pause
> and all the goodies.
>
> I'm not running an LDAP server, but could I suppose for this.
>
You might want to look at milter-ahead

Michele

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