Re: [Exim] SMTP synchronization error?

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Autor: Dave C.
Data:  
A: Tamas TEVESZ
CC: Juha Saarinen, exim-users
Assumpte: Re: [Exim] SMTP synchronization error?
On Fri, 31 May 2002, Tamas TEVESZ wrote:

> On Fri, 31 May 2002, Juha Saarinen wrote:
>
> > 2002-05-31 19:59:07 SMTP synchronization error (next input sent too soon):
> > rejected "HELO gmx.net" H=ts46-01-qdr2264.mdfrd.or.charter.com
> > [66.169.232.216]
> >
> > Wot dat?
>
> probably related to pipelining ? no further ideas, though.


Pipelining does require sync at certin points. Proper SMTP-sender
implementations of pipelining dont have this problem. Spamware often
sends entire SMTP sessions in one chunk, entirely ignoring the RFC.

Most likely, this was an instance of such spamware, and exim rejected
it.

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