On Mon, 28 Jul 2008 18:35:11 +0200 "Frank Ellermann" <hmdmhdfmhdjmzdtjmzdtzktdkztdjz@xxxxxxxxx> wrote: >Alexey Melnikov wrote: > >> nothing prevents the final SMTP server from passing commands >> to the LMTP server, before replying to the SMTP client. > >Thanks for info, I wasn't aware of that possibility. Maybe >it is unnecessary to have the LMTP reference as "normative", >but based on your info I agree that a "downref" is no issue. > Possible in theory. In practice unless and MTA's internal architecture is designd for this it would likely require substantial redesign to do so. Isn't SMTP supposed to be store-and-forward? I'm not sure if it's the case here, but if we are tampering with the store-and-forward paradigm, I think it's problematic. Scott Kitterman _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf