juan smitt:
> Hi,
>
>
> The clients are very sensitive to the mail service's response time (we
> can't do anything with that).
The response time from what? Here is an example conversation:
Client connects to server
(If DNS is broken, there may be some delay)
TCP handshake
(If the network is overload there may be some delay)
(There may be some delay as the server looks up the client name)
Server sends the 220 greeting
Client sends EHLO
Server replies
Client sends MAIL FROM
Server replies
Client sends RCPT TO
Server replies
Client sends DATA
Server replies
Client sends message header, body, and the final "."
(There may be some delay due to before-queue header/body
checks, Milters, other content filters)
Server replies 250 Ok (queued as abcdef)
(At this point the client knows that the message is stored)
Client sends QUIT
Server replies and disconnects.
Wietse
