Yes, DMARC is complementary to other email security technologies. It works in conjunction with other email authentication protocols like SPF and DKIM to provide a layered approach to email security. SPF and DKIM are used to authenticate the sending domain and message content, respectively, while DMARC provides a policy framework for controlling the handling of emails that fail authentication checks. DMARC also provides feedback to email senders about the status of their emails, which can be used to improve email deliverability and enhance other email security technologies.
