On 01/07/13 02:59, Wietse Venema wrote:
> Wietse Venema:
>> John Fawcett:
>>> I would like to propose the following addition. As well as logging
>>> error_count as per the original patch, it also logs the number of
>>> messages accepted during the smtp session. The aim of that would be to
>>> identify clients that repeatedly connect and never attempt delivery.
>> Why do you even care? Remember, when the client sends no mail, then
>> the error count reflects all rejected commands in the entire session.
>>
>> I don't think it is a good idea to expose random pieces of SMTP
>> engine internals.
> On the subject of sending commands without sending mail, a related
> counter is the "junk" command counter that is incremented with each
> HELO, EHLO, RSET, NOOP, VRFY, ETRN command (any command that can
> be repeated indefinitely without triggering an error response).
>
> Like the error counter, this counter has a limit, and it
> is reset after a successful mail delivery transaction.
>
>       Wietse
I'll investigate using that since it would be non zero if mail was
not delivered and zero if it was.

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