Now you can quickly view your DomainKeys, DKIM, and SPF validitay, and SpamAssassin score in one place. Just send an email to any address @dkimvalidator.com. Then check here to see the results. Here is a random address that you can use:
This is useful for verifying the end-to-end functionality of your DKIM and SPF configuration, as well as your actual SpamAssasin score. Since your email is sent through regular mail servers, all of the headers that these tools see are the same as your email recipients will see.
Configuring DKIM from scratch is difficult since it involves changes to your DNS configuration. DNS records are heaviliy cached, so making changes to the DNS configuration often involves waiting for hours between each test. This tool attempts to look up DKIM records directly from your authoritative server on each tests as a way to try to minimize that delay.
A few quick notes about how this works:
Messages sent to any @dkimvalidator.com address are routed to our Mandrill Inbound mail account
Mandrill submits the email messages to our server where it is saved for the other tools to read
We use the Perl Mail::DKIM::Verifier package to display DKIM information
We use the Perl Mail::SPF
Source: https://managewp.org/articles/14159/check-your-dkim-and-spf-configs
source https://williechiu40.wordpress.com/2017/01/09/check-your-dkim-and-spf-configs/
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