Re: [exim] Greylisting - Chnging IPs

Dean Brooks wrote:
> On Sat, May 10, 2008 at 12:16:03AM +0200, Heiko Schlittermann wrote:
>> Hello David,
>>
>> David Woodhouse <dwmw2@???> (Do 08 Mai 2008 14:10:21 CEST):
>>> It means that you shouldn't include the originating IP address as one of
>>> the criteria for matching emails. I use {sender,recipients,message-id}.
>> But this means that you're greylisting in your DATA acl (to get the
>> message id). Didn't you experience problems with returning a 4xx there?
>> I'm talking about serious operated MTAs being choked on 4xx after
>> sending the final dot. (Despite the fact that some RFC allows 4xx at
>> this point.)
>
> What kind of problems would you expect to see?
>

Some (old) versions of MDaemon just treat the 4xx at the end of data
like a 5xx error.