Re: [Exim] A lot of too many unrecognized commands in the lo…

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Autor: Suresh Ramasubramanian
Fecha:  
A: sharun, Bas Rijniersce
Cc: exim-users
Asunto: Re: [Exim] A lot of too many unrecognized commands in the log
On Monday, November 25, 2002 6:06 PM [GMT+0530=IST],
sharun@??? <sharun@???> wrote:

> Typical SPAMware: client that does not analyze output from server.


Actually those IPs look a lot like open proxies (socks, http-connect
etc).

When exim gets a stream of junk like HTTP headers passed to it from the
proxy (before the smtp commands for spam are passed through it) it
throws this error.

    -srs


> Bas Rijniersce wrote:
>> Hello,
>>
>> Just moved to the latest Exim. In my log I see a lot of the errors
>> that are shown below:
>>
>> 2002-11-25 00:57:15 SMTP call from (noord-holland.nl)
>> [210.100.223.125] dropped: too many unrecognized commands
>> 2002-11-25 02:38:51 SMTP call from bdsl.66.14.18.114.gte.net
>> (altavista.com) [66.14.18.114] dropped: too many unrecognized
>> commands 2002-11-25 04:38:58 SMTP call from pd99.elblag.sdi.tpnet.pl
>> (yahoo.com) [217.96.135.99] dropped: too many unrecognized commands
>> 2002-11-25 07:59:26 SMTP call from (webmail.co.za) [202.164.175.234]
>> dropped: too many unrecognized commands
>>
>> With Google I found some references to a bug in Postfix that was
>> causing this. But a telnet to for example webmail.co.za gives
>> Microsoft ESMTP MAIL Service. I also saw several other mailservers.
>>
>> What settings can I put in the config to allow also "faulty" hosts.
>> I run exiscan with SpamAssasin support, so I'd rather catch the spam
>> later on.
>>
>> I already added:
>> helo_accept_junk_hosts = true
>>
>> Are there other things to add?
>>
>> Kind regards,
>> Bas
>>
>> --
>>
>> ## List details at http://www.exim.org/mailman/listinfo/exim-users
>> Exim details at http://www.exim.org/ ##
>>
>
> --
> VVS56-RIPE