Postmastery offers a broad suite of email deliverability tools, with DMARC reporting being a key component. Their DMARC console provides detailed insights into DMARC, SPF, and DKIM authentication results, allowing for a comprehensive overview of email traffic and potential spoofing attempts. We find it integrates well within their larger platform.

Beyond basic DMARC reporting, Postmastery provides features like aggregated and forensic reporting, the ability to analyze specific sending sources, and advanced filtering options. Their focus is on providing an enterprise-grade solution that can handle complex email environments and high volumes of traffic, complete with professional services.

DMARC Report Viewer is a community-driven, open-source tool designed specifically for visualizing DMARC aggregate reports. It's a self-hostable solution that parses XML DMARC reports and presents them in a user-friendly web interface. Its primary function is to simplify the understanding of raw DMARC data.

As an open-source project, its feature set is focused on core DMARC report viewing. Users get a clear picture of DMARC compliance, sending sources, and email authentication failures. While it provides essential data, advanced features like proactive alerts, forensic reports, or broader deliverability insights are not natively included, requiring additional integrations or manual processes.

Postmastery's console is designed for professionals managing complex email infrastructures. While comprehensive, it has a learning curve due to the depth of features. Setting up and configuring domains, especially for larger organizations, can require a careful approach.

The interface is functional and provides extensive data points. However, some users might find the initial setup and navigation less intuitive compared to more streamlined, single-purpose tools. It's built for power users who need detailed controls and insights across their entire email program.

DMARC Report Viewer offers a straightforward user experience once it's set up. Since it's self-hosted, the initial deployment requires technical expertise to get it running on your server. However, once installed, the web interface for viewing reports is very intuitive.

Its simplicity is its strength. We appreciate that it focuses on presenting DMARC data clearly without overwhelming the user with extraneous information. The dashboards are easy to read and understand, making it accessible for those who just need to monitor DMARC compliance without a steep learning curve for daily use.

Postmastery provides dedicated support channels, including direct contact with their team for enterprise clients. Given their focus on managed services and larger organizations, the support is often tailored and goes beyond simple technical queries, encompassing strategic advice on deliverability.

Their support model aligns with a premium, consultative service, which is beneficial for complex issues or when needing guidance on optimizing DMARC policies and overall email performance. This is critical for businesses where email is a vital communication channel.

As an open-source project, DMARC Report Viewer's support primarily comes from its community. This means relying on GitHub issues, forums, and community contributions for troubleshooting and guidance. There is no dedicated support team or official customer service.

This model is common for open-source tools. While the community can be very helpful, it doesn't guarantee immediate or specialized assistance for critical issues. Users should be comfortable with a self-service approach or have internal technical resources to manage and support the tool.

Postmastery is best suited for medium to large enterprises and managed service providers (MSPs) who require a comprehensive DMARC management solution alongside broader email deliverability consulting. It's ideal for organizations that send high volumes of email and need robust analytics, proactive monitoring, and expert guidance to maintain optimal inbox placement.

Its suitability for SMBs depends on their specific needs and budget, as it's typically positioned for more complex email ecosystems. MSPs would benefit from its multi-client management capabilities and integrated professional services.

DMARC Report Viewer is an excellent choice for individuals, small businesses, or organizations with strong internal technical resources that prefer a free, self-hosted solution. It's perfect for those who want direct control over their data and infrastructure and primarily need to visualize DMARC aggregate reports.

It's less suitable for large enterprises or MSPs without the internal resources to maintain a self-hosted solution or who require advanced features, dedicated support, and a more integrated suite of deliverability tools. For SMBs with technical expertise, it offers a cost-effective way to get started with DMARC monitoring.