W B Hacker wrote: Correcting my own post....
*snip* > Routers are the first 'as shipped' place that Exim processes traffic in > a 'fully' recipient-unique manner. smtp protocol doesn't support it any > earlier (unless you have courier-mta at BOTH ENDS of session, but that > is not Exim relevant). Clarifying: Courier-mta's Extended Data Reply (EXDATA) occurs as an extra step *during* the smtp session, but *after* the conventional DATA phase, when it returns to a per-recipient handshake before finalizing message acceptance/rejection. While the technique has been proven in long-term courier-to-courier use, it is not (yet) present in other MTA's, so both parties have to be courier-mta AND have the feature optioned-on AND take advantage of its advertisement in the EHLO menu. Dumb additions to RFC's are often adopted all-too rapidly, even if MS fingerprints are all over them. OTOH, simple things of this sort - that add flexibility and 'JFW' - take about 10 to 20 years to wend their way thru the RFC process, so it may be another decade before some form of this becomes widely used. :-( Bill -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
