Randy Bush wrote:
>> So if you *really* want to block 'the real' *@yahoo.com' and not just
>> forgeries of it
>
> the opposite. i want to accept from real yahoo smtp senders and not
> forgeries thereof.
>
>> warn
>> log_message = MF5 Apparent forged Yahoo
>> senders = *@yahoo.com
>> condition = ${if match /* remove this line-wrap */
>> {$sender_host_name}{\Nyahoo.com$\N}{no}{yes}}
>
> playing with variations of this now.
>
> thanks
>
> randy
>
The general rule (not just with Exim) is to work on the minority case -
IOW the forgery, the 'lie', the just-plain-wrongness.
Providing you hammer the bad-actors along the way, usually all the
'accept' usage you need is one single, naked 'accept' verb as the last
line of each acl_smtp_<phase> case-structure.
No conditionals required on that one.
It is the deny-class verbs that fry the bastards. And the 'warn' verbs
that attach the electrodes.
;-)
Bill
