[exim-dev] [Bug 2230] New: cutthrough with multiple SMTP ses…

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Para: exim-dev
Temas novos: [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection, [exim-dev] [Bug 2230] cutthrough with multiple messages over a single connection
Asunto: [exim-dev] [Bug 2230] New: cutthrough with multiple SMTP sessions over a single connection
https://bugs.exim.org/show_bug.cgi?id=2230

            Bug ID: 2230
           Summary: cutthrough with multiple SMTP sessions over a single
                    connection
           Product: Exim
           Version: 4.90
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Delivery in general
          Assignee: nigel@???
          Reporter: todd@???
                CC: exim-dev@???


cutthrough delivery doesn't work as expected for multiple envelopes sent over
the same connection. I am not sure whether this behavior is supposed to be
supported (if seems like it should be), but the current state is pretty
strange.

The following session will do cutthrough for the first envelope but not for the
second:

EHLO example.com
MAIL FROM: sender@???
RCPT TO: recipient1@???
DATA
.
MAIL FROM: sender@???
RCPT TO: recipient1@???
DATA
.
QUIT

The following session will do cutthrough for the first envelope, and some
broken attempt to do it for the second (it opens up a cutthrough connection for
recipient2 but subsequently closes it):

EHLO example.com
MAIL FROM: sender@???
RCPT TO: recipient1@???
DATA
.
MAIL FROM: sender@???
RCPT TO: recipient1@???
RCPT TO: recipient2@???
DATA
.
QUIT

This stems from the fact that [cutthrough.nrcpt] is not reset in
[close_cutthrough_connection] and the check on whether to open a cutthrough
connection in [acl_check] is:
            ...
        && rcpt_count > cutthrough.nrcpt
            ...


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