Configuring dkim and DNS

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nicojijijiji

New Member
Feb 20, 2026
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Hi there! I cant seem to get to wokr my dns record with the dkim record that pmg provides me
This is the record that pmg gives me:
Screenshot_20260220_093408.png
My dns record is

pmg._domainkey.dti IN TXT " v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4rezSQNEnCvCqa07+U/Z5Ee4okSITwjWmYV35KPdz" "MrIUGyUwB5Js18VCB0K+KFKR6rvS72pMruZ4miRbl/qis0iHcML0io3h1IyS+kJaYmPXiqg1rcpwKggQus5JJatFeibECOAVYK1sZ2DFU306mGlepsHnjaS3p6Y7SDvswSdAjksn/dfDz3S"
"r7EYqWkEr1JHI8UmYbELVyOup8pv2NYBDOvI2QU4quTINtRbiPNXQ5QR2RfanvplGASOBf8hVut5QZYEUpDsbULfE5HrkiZLlVO+niaD6GcahI+F1I4fHY1ycbj4CC+2rge1iNdZBpKxZ6IdpXMYLwSt2SUyrQIDAQAB"

I also tried writing the key not separate and paste it as it is, but when i do a dkim lookup nothing comes up, what am I doing wrong?
 
Your published DKIM record (pmg._domainkey.dti.uncoma.edu.ar) is valid. What is your actual issue when you do the lookup? The DNS record itself should work.

Code: 
dig txt pmg._domainkey.dti.uncoma.edu.ar +short
" v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4rezSQNEnCvCqa07+U/Z5Ee4okSITwjWmYV35KPdz" "MrIUGyUwB5Js18VCB0K+KFKR6rvS72pMruZ4miRbl/qis0iHcML0io3h1IyS+kJaYmPXiqg1rcpwKggQus5JJatFeibECOAVYK1sZ2DFU306mGlepsHnjaS3p6Y7SDvswSdAjksn/dfDz3S" "r7EYqWkEr1JHI8UmYbELVyOup8pv2NYBDOvI2QU4quTINtRbiPNXQ5QR2RfanvplGASOBf8hVut5QZYEUpDsbULfE5HrkiZLlVO+niaD6GcahI+F1I4fHY1ycbj4CC+2rge1iNdZBpKxZ6IdpXMYLwSt2SUyrQIDAQAB"
 
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is this working? Shouldn't this be one string? instead of two parts?

"MrIUGyUwB5Js18VCB0K+KFKR6rvS72pMruZ4miRbl/qis0iHcML0io3h1IyS+kJaYmPXiqg1rcpwKggQus5JJatFeibECOAVYK1sZ2DFU306mGlepsHnjaS3p6Y7SDvswSdAjksn/dfDz3S"

"r7EYqWkEr1JHI8UmYbELVyOup8pv2NYBDOvI2QU4quTINtRbiPNXQ5QR2RfanvplGASOBf8hVut5QZYEUpDsbULfE5HrkiZLlVO+niaD6GcahI+F1I4fHY1ycbj4CC+2rge1iNdZBpKxZ6IdpXMYLwSt2SUyrQIDAQAB"
 
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Yes it did work, i separated like this because when i was looking for a solution i found a thread that split the key in 3, and it worked
 
nicojijijiji said:
Yes it did work, i separated like this because when i was looking for a solution i found a thread that split the key in 3, and it worked
Click to expand...
Yes some DNS/Registrars require it to be split into multiple DNS entries, sometimes formatted in particular ways based on the Registrars requirements. I've definitely run into this when I increased my Key Size to 4096.
 
pietroaretino said:
Yes some DNS/Registrars require it to be split into multiple DNS entries, sometimes formatted in particular ways based on the Registrars requirements. I've definitely run into this when I increased my Key Size to 4096.
Click to expand...
Actually the limit for TXT records is 255 bytes (within a pair of quotes) which normally translates to 255 characters, and afaik this is universal and does not depend on your registrar. Normally you only run into this limit with 2048+ bit keysizes DKIM records. At least those are the only record types I have to split records on a regular basis.
 
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