Dave Cridland <[email protected]> wrote: > > This is desirable, because the essential service offered by an MTA is equal > irrespective of the domain of the email, and it's possible (and sensible) > to use multiple, concurrently pipelined transactions for multiple recipient > domains. (And yes, this requires an interesting combination of ESMTP > service extensions, but it is possible).
Even basic SMTP allows multiple different recipient domains on a single transaction, no pipelining needed. Standard ESMTP only allows pipelining within transactions. I would advise against trying to pipeline multiple transactions because of bad interactions with abrupt TCP connection loss. The experimental extension RFC 1845 attempts to improve this, but it has problems. See <https://tools.ietf.org/html/draft-fanf-smtp-rfc1845bis>. I now return you to more directly topical subjects. Sorry about the digression :-) Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ South Biscay, Southeast Fitzroy: Variable 3 or 4, becoming southwesterly 4 or 5 later. Rough. Occasional drizzle. Good, occasionally moderate.
