Kevin A. McGrail:
https://wordtothewise.com/2012/11/how-long-is-your-dkim-key/It's a recommendation not a requirement so the pass even when lower than 1024 is accurate.
I disagree.Lauras article is more then two years old. But since more then 4 years ( Sep 2011 )
RFC 6376 say very clear: "Signers MUST use RSA keys of at least 1024 bits ..." ( https://tools.ietf.org/html/rfc6376#section-3.3.3 ) Andreas
