Author: Paul Vixie Date: To: John Sutton CC: exim-users, dcc Subject: [exim] Re: greylisting problem with Exim 4.50 as remote MTA
> The sysadmin of an Exim 4.50 installation tells me that Exim does not > differentiate between a 4yz and a 5yz received after the DATA
> transfer, i.e., treats them both as permanent errors and so bounces
> the message. Hence interoperating with DCC greylisting is impossible.
> I know for sure that Exim 4.34 does not suffer from this (alleged)
> protocol violation.
>
> Any comments?
