[Esd-l] Sendmail unresolvable_domains

[Scott Taylor]

Fred Laxton said:
> Enabling that feature will get you more spam, not less.  It means the
> spammer can use any bogus domain in the from address and Sendmail will
> allow it.

Yes, that's why I remarked it out, to disable it.  I know you are only
trying to help, but please read fully before responding.

> Scott Taylor wrote:
>> Hello all,
>>
>> I remarked out this feature from the sendmail.mc file:
>> FEATURE(`accept_unresolvable_domains')dnl
>>
>> (and ran make and restarted sendmail)
>>
>> thinking that it would stop a lot of SPAM, and it seems to have helped,
>> but, I still get messages with headers like this:
>>
>> Received:  from 24.70.124.235 ([61.34.207.58]) by
>> mustang.dctchambers.com
>> (8.12.11/8.12.11) with SMTP id i5P0I4gi010468; Thu, 24 Jun 2004 17:18:06
>> -0700
>>
>> How do I stop this type of abuse?  As you may have noticed, the HELO
>> address is my mail server's IP, which would never happen, my mail server
>> uses and resolves it's own local name or Localhost.
>>
>>
>> --
>> Scott
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>> Esd-l at spconnect.com
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>


--
Scott