Feature set
MailHardener offers a robust suite of tools extending beyond basic DMARC reporting to encompass SPF, DKIM, BIMI, MTA-STS, and DNS monitoring. We found its dashboard provides granular control and detailed insights into email authentication, making it a strong choice for those who appreciate comprehensive oversight.
Its strength lies in providing a broad security umbrella, allowing users to manage various aspects of their email ecosystem from a single platform. We've seen it perform admirably in detecting potential misconfigurations and identifying unauthorized senders, offering a holistic approach to email security posture management.
Sendmarc focuses heavily on guiding users to DMARC compliance, with features like detailed DMARC, SPF, and DKIM configuration assistance. We noted its emphasis on compliance for major providers such as Google and Microsoft, making it particularly appealing for organizations with high-volume sending to these platforms.
Beyond core DMARC, Sendmarc provides blacklist (and blocklist) reporting, MTA-STS and TLS reporting, and user access logs. Its managed service offerings, especially in higher tiers, demonstrate a commitment to ensuring full DMARC implementation, taking much of the heavy lifting off the user's plate.