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Author Topic: Domain-based reputation  (Read 12624 times)


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Domain-based reputation
« on: February 26, 2010, 03:53:43 PM »

We've just heard recently that SpamHaus is offering a Domain Block List starting March 1st that will be included in new versions of SpamAssassin, as well as being generally available to all postmasters to help block incoming spam.


That's great news for everyone who wants another way to block spam.

It also means that mailing outbound may change. For example, as ISPs are better able to target spam, throttling rates per IP may be adjusted and the need for mailing through multiple IPs could be diminished if not eliminated.

Has anyone heard of ISPs that already maintain domain-based reputation?

I've heard that AOL was working towards it. Did they implement it already?
Do we know which ISPs make use of SpamAssassin or the other SpamHaus RBLs?

It would be nice if Port25 could maintain a list of ISPs similar to which ones require DKIM, etc.


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Re: Domain-based reputation
« Reply #1 on: April 09, 2010, 09:47:43 PM »

Well the trend seems to be moving toward DKIM for domain based reputation where the d="somedomain.com". We have implemented it for about 3 months and have had a crazy ride. YH is my biggest test case for DKIM. Its still very buggy but they claim its improving on the daily.
I truly hope hotmail never adopts domain reputation, it will cripple so many legite mailers out there :( well atleast cripple the speed. So a list that took 1 day might take a few days since HM has a throttling mechanism in place that sometimes gets triggered by FBL, bounces or even speed that your sending!
Whats a FBL?


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  • Hasan Kurtoglu
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Re: Domain-based reputation
« Reply #2 on: April 22, 2010, 05:37:11 PM »

Isps already keep the history of your sender domain and will treat you as to your histroy when you contact them bout any issues.
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Re: Domain-based reputation
« Reply #3 on: October 12, 2010, 04:55:28 PM »

Isps already keep the history of your sender domain and will treat you as to your histroy when you contact them bout any issues.
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calvin - please contact me.



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Re: Domain-based reputation
« Reply #4 on: January 11, 2011, 05:58:46 PM »

Looks like yahoo is using domain rep + ip rep + from rep...

I think we would change the term "email marketing" to "email contacting". The word "marketing" is dying.
André Zaiats
C0D1X Tecnologia


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Re: Domain-based reputation
« Reply #5 on: January 17, 2011, 05:16:40 PM »

We had a specific case where a domain was getting bulk foldered at gmail. It was tied to DK/DKIM and the domain. When we disabled DK/DKIM, the mail went to the inbox. We are now implimenting a new sending domain. Our theory is that the original domain was somehow marked as bad. Why it was tied to DK/DKIM only is puzzling. This one case might be an outlier.
For very high volume senders, there is some IP warming that has a domain component at gmail. If you change sending domains, you have to do additional warming. But for lower volumes, domain might not matter so much.