Postmastery provides a comprehensive platform that extends beyond basic DMARC reporting. Their DMARC module is part of a larger console designed for email deliverability monitoring and management, offering detailed insights into email authentication, reputation, and inbox placement.

We found its strength lies in consolidating various deliverability aspects into a single dashboard, providing a holistic view that allows for more granular analysis of email streams and potential issues affecting DMARC compliance.

DMARC-SRG is a robust open-source tool primarily focused on parsing, viewing, and summarizing incoming DMARC reports. It's built as a PHP application, meaning users need to host and maintain it themselves, giving full control over data and infrastructure.

The feature set is quite specific, focusing on core DMARC reporting functionalities without extending into broader deliverability aspects like bounce tracking or advanced inbox placement tools. Its value is in its simplicity and directness for DMARC data processing.

Postmastery's user interface is professional and well-structured, aiming to present complex data in an understandable format. While powerful, the breadth of features means there can be a slight learning curve, especially for users new to advanced deliverability metrics.

Navigation is logical, and the dashboards are customizable, allowing users to prioritize the information most relevant to their operations. We appreciated the effort to make a feature-rich platform accessible, though some advanced configurations might require delving into their documentation.

DMARC-SRG, being a self-hosted PHP application, requires a certain level of technical proficiency for setup and ongoing maintenance. The user experience after installation is functional and straightforward, designed for direct interaction with DMARC report data.

It's not a 'plug-and-play' solution; the user's journey begins with server configuration and script deployment. The interface itself is utilitarian, prioritizing data presentation over slick design, which is perfectly acceptable for its intended purpose as a developer-centric tool.

Postmastery offers dedicated support channels, aligning with its enterprise-grade offering. Clients typically have access to expert guidance for complex deliverability issues, DMARC policy implementation, and platform optimization.

Given the consultative nature of their services alongside the platform, we expect a hands-on approach to support, ensuring clients maximize the value from their investment. This is crucial for larger organizations that may require tailored assistance.

DMARC-SRG, as an open-source project, relies on community support and the documentation provided in its GitHub repository. Users needing assistance would typically consult the project's issues page, forums, or directly inspect the code.

There's no formal support agreement or dedicated team, which is standard for open-source tools. While this fosters a self-reliant approach, it means users should be prepared to troubleshoot issues independently or seek help from the wider developer community.

Postmastery is well-suited for medium to large enterprises and MSPs (managed service providers) that require a robust, all-in-one deliverability platform. Its comprehensive feature set and consultative approach align with organizations managing high email volumes and complex sending infrastructures.

It is an excellent choice for businesses that prioritize dedicated support, detailed reporting, and a partner to help navigate the intricacies of email authentication and sender reputation management across multiple brands or clients.

DMARC-SRG is ideal for technically proficient individuals, small to medium businesses (SMBs) with in-house IT capabilities, or developers who prefer full control over their DMARC reporting solution. Its self-hostable nature appeals to those with strict data privacy requirements or a desire to avoid recurring subscription costs.

For MSPs or enterprises, it could serve as a foundational component if integrated into a larger custom-built monitoring system, but it lacks the out-of-the-box multi-tenancy and extensive reporting features typically demanded by these segments.