How do you produce the 'default._domainkey.drpedroazevedo.com' file? I deleted mine because my key expired and opendkim-keygen did not produce a new one as expected.
mlr01 keys # opendkim-testkey -d drpedroazevedo.com -s default -vvv -k /etc/opendkim/keys/default.private -x /etc/opendkim/opendkim.conf
opendkim-testkey: /etc/opendkim/keys/default.private: WARNING: unsafe permissions
opendkim-testkey: key loaded from /etc/opendkim/keys/default.private
opendkim-testkey: checking key 'default._domainkey.drpedroazevedo.com'
opendkim-testkey: keys do not match