How to Use DKIM to Prevent Domain Spoofing - SendGrid https://sendgrid.com/blog/how-to-use-dkim-to-prevent-domain-spoofing/> DKIM doesn’t account for the sender of messages. Even if a message passes DKIM verification, the sender responsible for the message could still be a bad actor sending malicious email.もしかして: 翻訳でより曖昧になった