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Im using PowerMTA and trying to get dkim to work. Im using godaddy DNS. Gmail is giving me : 

dkim=neutral (no key for signature) header.i=@

same thing with yahoo: permerror(no key)

dig output:

 dig +short txt dkim._domainkey.gamerbasecamp.com
"v=DKIM1\; k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3jyMaBlYI9QFs162gU+fI3Yul1gBsO6PUaGRctgdvpduywJQ9vrs3v582ZypCfB9WVndmtr1QaJ33yMrqHe+GHnwCh0XJT+9NrOnkMuEynqPoG6dZXd7ZqigXuy2pGd9eGAIin02LkG0xKrV3LMHkpp+regxBNOYKf5GDP3hNYwIDAQAB\;"

email to check-auth@verifier.port25.com says: 

DKIM check details:
----------------------------------------------------------
Result:         permerror (key "dkim._domainkey.gamerbasecamp.info" doesn't exist)

This happened after I changed the domain of the SMTP server. I have another server with exactly the same setup and DKIM is pass.

Any idea what could be wrong ?

nailoxx
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2 Answers2

3

You have to setup a TXT record for dkim._domainkey.gamerbasecamp.com, while you are doing test from dkim._domainkey.gamerbasecamp.info.

peterh
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Email geek
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0

You need to send right selector header header.s=dkim,

The most important thing is: selector indicates your DomainKeys/DKIM public key location. For example: if your domain selector is: "s1024", your public key record will be "s1024._domainkey.yourdomain.com"; if your domain selector is: "mta1", your public key record will be "mta1._domainkey.yourdomain.com".

Example of the right dkim header for yourdomain.com with "s1024" selector:

ARC-Authentication-Results: i=1; mx.google.com;
   dkim=pass header.i=@yourdomain.com header.s=s1024 header.b=Nj1yIIn0

https://www.emailarchitect.net/domainkeys/doc/html/selector.htm

Andrey Izman
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