Here's what I think I'd like to do if this is possible.
1) If the sender verifies - accept the message.
2) If the sender fails - deny the message.
3) If the lookup times out or is otherwise undetermined - add a warning
message header.
On #3 ideally - reject the message once temporily and then accept it
with a warning.on a retry.
Wonder if this can be done?
Tony Finch wrote:
>On Tue, 28 Sep 2004, Marc Perkel wrote:
>
>
>
>>I was wondering how well sender callout worked and if I would end up rejecting
>>any good email with it.
>>
>> deny message = Message Rejected - Invalid Sender <$sender_address>
>> !verify = sender/callout
>>
>>Is this safe?
>>
>>
>
>Moderately. I suggest the configuration from the following URL. Our
>nocallout table contains mostly entries for email from incompetently
>configured web servers.
>
>http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20040913/msg00181.html
>
>Tony.
>
>
