how can i genrate DKIM in rsa-sha256 logiritham .. is rsa-sha1 okey for mail authentication ... when i test with http://emailaudit.com then its recommends using rsa-sha256.. Plese suggest .. Thank you.
i have genrate key via using command openssl genrsa -out dkim.private.key 1024 openssl rsa -in dkim.private.key -out dkim.public.key -pubout -outform PEM and configure it on my mailserver. Unfortunately it is also rsa-sha1 logarithm(when i checked). so how can i create DKIM in rsa-sha256 logarithm ??