Mark,

>> However what I need to do is to make exceptions for "senders" being able
>> to bypass the ruleset. I have read about the suggestions for postfix. I am
>> however using sendmail and milter.
>
> Some ensurance about the sender validity must be used, and based on that,
> a policy bank can be loaded which lifts the banning rules restrictions.
> There is intentionally no simple mechanism to do that based on only
> the sender's claimed e-mail address.

That was my first attempt. I am in fact using the MYNETS Policy, but in 
there I don't know how to make an exception for certain senders of banned 
attachments. This would at least insure that the mail comes form inside 
the MYNETS network.

> Are you refering to incoming or outgoing mail? For outgoing mail
> one can load a policy bank based on client's IP address.

I am referring to outgoing mail. But I misunderstood the variable 
bypass_banned_checks_acl, as this is for defining recipients and not 
senders.

> With the AM.PDP protocol, there is another way of loading a
> policy bank. The AM.PDP request can specify a list of policy
> banks to be loaded, e.g.:
>  policy_bank=SMTP_AUTH,TLS,ORIGINATING,MYNETS,...

I am using SMTP_AUTH, ORIGINATING, MYNETS, but I still don't know how to 
make an exception for outgoing mails from specific senders. Is there a map 
or variable I could use inside the MYNETS policy, or would I have to come 
up with a new policy? Any suggestions,

Many thanks in any case,

.peter


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