Hi again,
as I stated earlier, my wishes about a new mail system
would be to replace plain SMTP mail, Mailing Lists,
POP3, uucp (rmail/bsmtp), and NNTP in one step.
I therefore propose to classify the transport mechanism
- between two relays as
- push (like SMTP, NNTP newsfeed)
- pull (like POP, NNTP fetching)
- push/pull (both of them)
- synchronize (push/pull without delete, see below)
and to further distinguish between
- deleting the message after successful transfer (e.g. SMTP)
- keeping the message (e.g. NNTP)
As an overall traffic classification I'd propose the usual
three
- unicast (like SMTP)
- broadcast (somehow like NNTP)
- multicast (need to go into further detail, should cover
both mailing lists and newsgroups, but
support different mechanisms of subscription
like central subscription like in mailing lists
and decentral subscription like in newsgroups,
furthermore decentral distribution or
central distribution, with or without moderation)
regards
Hadmut