Kevin A. McGrail skrev den 2015-01-11 18:16:
A quick Google search brings up this 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.
bug created, https://sourceforge.net/p/opendkim/bugs/215/ but i still think Mail::DKIM is at fault can spamassassin change to warn on small keysize ?