[ExchangeList] Re: Blacklisting

  • From: "Jos.schijven" <jos.schijven@xxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 21 Mar 2006 22:41:08 +0100

Try again

 

  _____  

Van: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] Namens ChongJa@xxxxxxxxxxxxxxxx
Verzonden: dinsdag 21 maart 2006 22:06
Aan: exchangelist@xxxxxxxxxxxxx
Onderwerp: [ExchangeList] Re: Blacklisting

 

So if this is the case, it is possible for subdomainA to be blacklisted due
to subdomainB's actions?

 

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From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Greg Mulholland
Sent: Tuesday, March 21, 2006 3:51 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Blacklisting

 

Greg is right! generally a blacklist service will black list a bank of ip's
depending on how tight they are. Having said that if these MX servers were
setup in mesh topology for backup then it is entirely possible that the same
mails which bounce around MX1 may bounce around MX2 thus causing the same
problem.

 

Greg

 

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From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Greg Lara
Sent: Wednesday, March 22, 2006 6:32 AM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Blacklisting

It's always been my impression that a domain is blacklisted based on it's IP
address. So if west.company.com has an independent MX record, from a DNS
standpoint there would be no association with east.company.com and therefore
no reason for the east domain to be blacklisted.

 

Greg Lara

 

  _____  

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of
ChongJa@xxxxxxxxxxxxxxxx
Sent: Tuesday, March 21, 2006 2:22 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Blacklisting

Let's say you are east.company.com and you also host MX records for
west.company.com and so forth. If west.company.com was compromised and get
blacklisted, can they potentially get the root domain company.com
blacklisted?  I'm thinking each domain is autonomous and only the individual
domains would get blacklisted and not the entire root. Anybody know for
certain? Thanks.

James Chong

ETS Sr. Exchange Engineer

Office: 703.206.7548

Cell: 703.863.1483

chongja@xxxxxxxxxxxxxxxx

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