我已经配置了 DKIM：
Dec 27 11:10:03 mailer opendkim[378]: OpenDKIM Filter v2.11.0 starting (args: -x /etc/opendkim.conf)
Dec 27 11:10:10 mailer postfix/postfix-script[551]: warning: symlink leaves directory: /etc/postfix/./makedefs.out
Dec 27 11:10:10 mailer postfix/postfix-script[719]: starting the Postfix mail system
Dec 27 11:10:10 mailer postfix/master[721]: daemon started -- version 3.4.13, configuration /etc/postfix
但是信件没有签名，我连接到25端口，没有错误，请告诉我哪个配置文件可能有问题？我的密钥正在验证中
opendkim-testkey: using default configfile /etc/opendkim.conf
opendkim-testkey: key loaded from /etc/postfix/dkim/mail.private
opendkim-testkey: checking key 'mail._domainkey.domain.com'
opendkim-testkey: key not secure
opendkim-testkey: key OK
完全按照本指南进行配置https://www.linuxbabe.com/mail-server/setting-up-dkim-and-spf
请告诉我该往哪个方向看以及哪里的设置可能有问题。预先感谢大家！
grep 套接字 /etc/opendkim.conf ->
# Socket smtp://localhost
# ## …