Re: potable e-mail, now Trying to do too much (was Re: the introduction problem, etc.)

[Masataka Ohta <[e-mail]>]

John Levine wrote:

> Technically it would not be hard to add a per-mailbox DNS lookup to SMTP,
> ignoring the detail that no two mail systems agree what a mailbox is.

FYI, according to a non-standard rfc881:

    Mailbox Support

       The design of the domain servers provides two levels of support
       for mail.

       The first, called "agent binding", is that the right hand part of
       the typical mail box (Y in X@Y) can be mapped a host that will
       either accept the mail as the destination or accept the mail for
       forwarding.

       The second, called "mailbox binding", is to map the entire mailbox
       (X@Y) to a destination (this mechanism can also support some
       mailing list functions).

						Masataka Ohta