In order to provide their emails with an additional layer of protection, businesses need to implement a new standard like Brand Indicators for Message Identification (BIMI), as it promises to take consumer confidence to the next level. 

Even after enforcing DMARC policy on your domain, you still need to continue monitoring your domain for total email security.

DMARC Forensic Reports (RUF) give much more detailed information about emails from your domain that failed DMARC authentication.