Rajesh Kumar Mallah:
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> Hi,
>
> We allow relaying of email via our server to our clients using authentication.
> The problem is that some miscreants have got hold of our clients password
> and are using our email server to send SPAM after successfully authenticating.
>
> Please tell how to control this situation.
>
> I was thinking in lines of enforcing policies on even authenticated smtp
> clients
> that are pumping SPAM . Eg restrict clients not to send more than 10 emails
> per minute , etc.
Change the passwords. Then, google for policy, postfwd, etc. which
support long-term rate limits.
Wietse
