[Mimedefang] action_tempfail question -- greylist at filter_begin

[Xiaoyan Ma]

> > Is it guaranteed that the 1st recipient remains the first one in the next
> > delivery attempt?
>
>No, but I bet it is true in the vast majority of cases.
>
>However, there are weird systems out there, so I wouldn't count on it.
>In fact, some systems (Lotus Domino?) store messages in their own internal
>format, so when they retry, the body of the message is different for
>each retry!  The MIME boundary depends on the time of day.
>
>Regards,
>
>David.

We had a message from earthlink.net that was greylised 4 times and finally 
got through 5 hours later.  The reason was the re-queued message was picked 
up by different boxes.  Maybe I should only take the first 3 octes of the 
IP-addresse for greylist and hope this will not open doors for spammers.

Xiaoyan