Re: Open relay and SPAM

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From: Lanwench [MVP - Exchange] (lanwench_at_heybuddy.donotsendme.unsolicitedmail.atyahoo.com)
Date: 04/10/04 

Date: Fri, 9 Apr 2004 20:41:05 -0400

You can clear out the queues manually or wait til it takes effect. However,
if DNSreport said you were an open relay, authenticated relay isn't the
issue - what are the settings in your relay restrictions? If you have "only
the list below" and it's either empty or has only the appropriate internal
IPs in it, you aren't an open relay...try another test here?
http://www.abuse.net/relay.html

Tony Smart wrote:
> Ok, I checked dnsreport.com and yes it said we were an
> open relay. I disabled the authenticated relay, (I think).
> I checked again with dnsreport.com and it's still there.
> Is there a bleed off time for that to check to see if you
> have closed the relay? I haven't renamed any accounts, but
> I have left the guest account disabled and also did a
> forced password change. With the authenticated relay
> disabled I am still getting a ton of stuff in the bad mail
> folder, and the queues folder is packed. Any other
> sugestions?
>
> Tony
>
>
>> -----Original Message-----
>> E2k/2k3 out of the box are not open relays, so unless you changed
>> something in your relay settings, you aren't an open relay. They
> do, however, leave
>> authenticated relay enabled, so unless you've renamed built-in
>> account names, left guest disabled, forced regular password changes
>> & complex passwords, a smart spammer may be able to authenticate &
>> relay - you can stop this by disabling authenticated relay if you
>> don't need it.
>>
>> To check to see if you're an open relay, first might want to look up
>> your domain's DNS at www.dnsreport.com - also see here:
>> http://www.abuse.net/relay.html
>>
>> Tony Smart wrote:
>>> We are using exchange 2003 and ISA Server. What is the
>>> easiest way to setup so as not to be an open relay for
>>> SPAM. Also how would you go about checking to see if you
>>> are an open relay for SPAM.
>>>
>>> Any help on the questions would be great.
>>>
>>> Tony
>>
>>
>> .

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