
The DKIM Reputation Project's aim is to improve spam filtering based on DKIM signed emails. Therefore we provide the following free and open services:
We also propagate the spread of authenticated email with the Sender Authentication Initiative!
Here you can check your own DKIM Reputation. All you need is to enter your email address or your domainname. In case that your email is signed by another domain, enter both.
Example:
Email: good@example.com Signingparty: example.com (best reputation)
Email: bad@example.com Signingparty: example.com (worst reputation)

In the DKIM Reputation database we collect identities of particularly spammers that are sending DKIM valid mails to spam traps we are processing. This data is provided as a DNS blacklist, which is accessible to anybody and can be used as one more spam filter criteria.
Our philosophy of processing and analyse our spamtraps is described on the mission page. But we support you also in how to use the DKIM Reputation Blacklist with ready built SpamAssassin plugins as well as with information on how to build your own client.
As we want to spread the DKIM standard we provide a free DKIM signature check: our service will check your DKIM signatures daily and will notify you, if your signature is invalid. Just register!
Furthermore we are developing a notification service, which will send you an email, when your maildomain is listed on our blacklist.
We are always looking for people that share our ideas and that want to improve our free services. The ways you can help us:
Just get in contact with us!
There is also professional support and consulting available. Agitos Websolutions e.g. offers consulting and signing services as well as professional support for DKIM-Connector.
You can also find other consulting companies around the world on dkim.org
The DKIM Reputation Project is licenced by Creative Commons Licence.