Hi,

Try g_from_check and g_from_noforgeme    there are some other strategies 
but this will get you started.

--Ed

On 04/18/2016 10:36 AM, David Camm wrote:
> every once in a while - luckily not too often, a user's machine picks up
> some malware and the result is that their smtp credentials are stolen
> and then used by the bad guys to send a bunch of spam.
>
> apparently they can log in but then send with a completely different
> 'from' address.
>
> since we require the complete email address as part of smtp login (ie
>HIDDEN@advwebsys.com), is there some setting or some rule which would
> reject any attempt to log in as HIDDEN@validdomain.com' with a from
> address of, say HIDDEN@nny@invaliddomain.eu'?
>
> david camm
> advanced web systems
> keller, tx
>
>
>

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