Why it occurs
If your DKIM record is not verifying, the issue is typically due to one of the following:
– Incorrect value added to the DNS TXT record
– Unsupported DKIM key length (e.g., trying to add a 2048-bit key as a single string)
– DNS record not yet propagated
Steps to resolve the issue
1. Review and correct the DNS TXT record
– Check the DKIM record value provided by Infobip.
– The values need to be exact, otherwise, the domain will not be verified.
– Use a tool like DNS Checker or MXToolbox to confirm whether the DKIM TXT record is correctly added. Search for [selector]._domainkey.[yourdomain.com], and select the TXT type.
– If no record is found, it hasn’t propagated yet or is missing.
– If a value appears but doesn’t match, check for typos, missing quotes, or formatting errors.
2. Check the TXT record character limits
– Some DNS providers restrict TXT records to 255 characters per string.
– A 1024-bit DKIM key typically fits within one string and is widely supported.
– A 2048-bit DKIM key must be split into multiple strings to avoid truncation or validation issues.
Tip: If your DNS host doesn’t support multi-string TXT records, use a 1024-bit key instead.
3. Recreate the domain or split the DKIM record
Depending on your setup, you can:
– Recreate the domain with a 1024-bit key to stay within limits. You can choose to delete the existing domain and recreate it with a shorter DKIM key of 1024 bits. This key size will comply with the 255-character limit set by your DNS provider. By doing this, you’ll keep the key length within the allowed limit and resolve the issue.
– Split the DKIM record into two strings if using a 2048-bit key and your DNS host supports it. This method allows the key to be stored across multiple records without exceeding the DNS provider’s character limit.
DNS changes can take up to 48 hours to propagate.
4. Contact Support
If you’ve completed the steps above and the DKIM record still isn’t verified:
– Email [email protected]
– Include your domain name, a screenshot of the current DNS TXT record, and confirmation of the DKIM value you’ve added
