Stefan F?rster:
> * Wietse Venema <wie...@porcupine.org>:
> > Stefan F?rster:
> > > Dear members of postfix-users,
> > > 
> > > can anyone of you please explain to me what the following log entry
> > > means:
> > > 
> > > postfix/smtpd[8558]: improper command pipelining after QUIT from 
> > > unknown[64.8.20.35]
> > 
> > This means that the client sent "QUIT<CR><LF>" followed by something
> > else; a sign of poor software at work. 
> 
> I see, so that additional text was received before the "QUIT"
> statement was actually evaluated and acted upon. Thank you.

Correct. Before executing the next command, Postfix reads it from
the input stream, and then it also checks if there was more input.
Depending on the command, 'more input' is or is not allowed.  For
example, it is not allowed with DATA and QUIT.

        Wietse

> > Perhaps Postfix should log pipelining violations with a fragment
> > of the bits that were sent in error.
> 
> I don't think this could do much harm.
> 
> 
> Thanks again
> Stefan
> 
> 

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