On Sat, Jul 03, 2010 at 02:24:20PM -0700, Asai wrote:
> Jeroen Geilman wrote:
>> On 07/03/2010 11:20 PM, Asai wrote:
>>> Jeroen Geilman wrote:
>>>> On 07/03/2010 09:14 PM, Charles Marcus wrote:
>>>>> On 2010-07-02 7:20 PM, Asai wrote:
>>>>>> OK.  Has anyone successfully been able to work around this 
>>>>>> issue?

What issue? It seems that the original issue was misunderstood, 
and/or misdiagnosed. You (Asai) have yet to post anything here with
which we can assist you.

http://www.postfix.org/DEBUG_README.html#mail

>>>>> The only way is to have the admin for the CISCO PIX disable
>>>>> the stupid smtp fixup garbage on the CISCO box.
>>>>>
>>>>> As far as I know, there is NEVER any reason to have this 
>>>>> enabled on an internet facing box that receives mail from 
>>>>> 'wherever'...
>>>>
>>>> "fixup protocol smtp" on a Cisco PIX firewall does several 
>>>> things:
>>>>
>>>> 1. it inspects every single SMTP packet it sees

How is this inspection a good thing?

>>>> 2. it disallows all but the SMTP commands explicitly stated
>>>> in RFC [8|28|53]21

This is NOT a good thing. It breaks the features of ESMTP.

>>>> and
>>>> 3. it replaces the SMTP greeting banner with a generic one
>>>>
>>>> It is obviously the latter you have an issue with :)
>>>>
>>>> While I agree that it should never be enabled *by default*, it's  
>>>> hardly stupid, predating modern anti-spam measures such as  
>>>> policydaemons and DNSBLs by at least 10 years.

I'll admit that most/all of what I know about it is from reading here 
and other forums, but I don't see any value in Cisco's SMTP "fixup".

>>> Thank you for your responses.
>>> Is there anything I can do on my end?  As far as the SMTP 
>>> greeting banner?
>>
>> Have you already established that this is, in fact, the issue ?
>>
> No, I am basing this assumption on your comment, "It is obviously 
> the latter you have an issue with :)"

I think you missed a bit of sarcasm. No, the banner is not causing 
problems, it merely pointed out to us one of the potential problems 
you're facing.
-- 
    Offlist mail to this address is discarded unless
    "/dev/rob0" or "not-spam" is in Subject: header

Reply via email to