There are several ways to monitor email domain reputation, including, but not limited too:

Email deliverability monitoring tools:
There are several email deliverability monitoring tools available that provide data on email deliverability metrics and domain reputation and MaxOpens can use these tools to keep a pulse on your domains to proactively respond to issues with your email sending.

Blacklist monitoring:
Email domain reputation can be negatively impacted if your domains or IP address are added to a blacklist. We can provide blacklist monitoring services and alert you, and respond, if your domain or IP address is added to a blacklist.

Sender Score:
Sender Score is a reputation rating value that evaluates your domain and IP reputation based on email sending behavior, such as complaint rates, email volume, and email content. We can monitor your Sender Score and receive alerts if it drops below a certain threshold, and respond as needed.