RE: [exim] Too many syntax or protocol error.

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Author: Hochstrasser Benedikt
Date:  
To: exim-users
Subject: RE: [exim] Too many syntax or protocol error.
sam wun wrote:

> Does anybody seen this err in the rejectlog before:


> 2004-10-26 15:10:22 SMTP call from [207.136.202.146] dropped:
>    too many syntax or protocol errors (last command was "??")
> 2004-10-26 15:14:45 SMTP call from [203.255.10.96] dropped:
>    too many syntax or protocol errors (last command was "??")
> 2004-10-26 15:15:29 SMTP call from [220.178.76.18] dropped:
>    too many syntax or protocol errors (last command was "??")


What does it mean?
>>>>


Someone has a severely broken mail server (or a script or a virus) that
enters commands in bad sequence or with illegal characters (possibly
some unicode character set).
I get these errors too, occasionally. (If a specific IP/name proves to
be extremely persistent and it is not an MX for a specific domain, I
blacklist it)

--
Ben