InboxMonster provides a broad suite of email performance tools, with DMARC monitoring as a key component within its Deliverability Suite. We found their platform excels in offering comprehensive insights, spanning pre-send workflows, creative proofing, and robust deliverability monitoring.
Beyond DMARC, it offers spam trap and blocklist (or blacklist) monitoring, reputation analysis, and even Apple and Gmail AI summaries. This makes it a one-stop shop for teams looking to optimize their entire email channel, not just DMARC compliance.
Postmastery's DMARC Reports module, part of their larger Postmastery Console, is geared towards in-depth email authentication analysis. We observed a strong focus on core DMARC functionality, providing the essential data needed for policy enforcement and email security.
While their public-facing information emphasizes a comprehensive console, the DMARC specific features align with what one would expect from a dedicated DMARC reporting tool. Their background in deliverability consulting suggests a deep understanding of these protocols.
How easy is each product to use
User experience
We found InboxMonster's user interface to be generally intuitive and easy to navigate for core functions. Its dashboards provide clear reporting for understanding deliverability and reputation factors. The platform's simplicity in UX and UI is often highlighted by users, allowing even non-deliverability experts to utilize it effectively.
However, due to the sheer breadth of features and data sets, some users, particularly those less experienced, might find the platform's many tabs and numbers a bit overwhelming to follow without consistent support or training. A slight learning curve is noted, but it's quickly overcome with use.
Postmastery's Console, including the DMARC Reports module, appears designed for clarity and efficiency, especially for users focused on DMARC implementation and monitoring. We anticipate a clean layout that presents critical DMARC data without unnecessary complexity, typical of platforms built by deliverability specialists.
While public user experience feedback is limited, the emphasis on enterprise-grade solutions suggests a robust yet professional interface that caters to users needing actionable insights. It likely requires some foundational knowledge of DMARC to leverage its full capabilities effectively.
Which product has the best support
Support
InboxMonster consistently receives high praise for its exceptional customer support. We've seen numerous accounts highlighting proactive, knowledgeable, and responsive account managers and deliverability consultants. They offer a 'white glove set up' and dedicated reps who often flag issues before clients even notice them.
The support extends to providing actionable insights, remediation plans, and even leveraging existing relationships with ISPs to troubleshoot inboxing issues. This level of personalized, hands-on assistance is a significant differentiator, making them more of a partner than just a vendor.
Postmastery's background as deliverability consultants suggests a deep well of expertise that underpins their product support. We can infer that users of their DMARC Reports module would benefit from this specialized knowledge, especially for complex DMARC deployments or troubleshooting.
While specific details on their software support structure are less public, their commitment to tailored solutions implies a direct line to knowledgeable professionals. However, without explicit reviews, we cannot directly comment on response times or the breadth of their software-specific support channels.
Who should use each product
Suitability
InboxMonster is best suited for mid-market and enterprise-level organizations that require a comprehensive email deliverability and creative performance platform. Its high starting price point and extensive feature set cater to larger teams with significant email programs and the budget to invest in an all-encompassing solution.
It's highly suitable for enterprises needing dedicated, hands-on support for complex deliverability challenges. While some SMBs might find value, the pricing model typically aligns better with larger budgets. For MSPs, it could be a powerful tool for managing multiple client domains, given its robust reporting and expert assistance.
Postmastery is likely ideal for organizations, including enterprises and larger SMBs, that prioritize DMARC security and want a robust, focused solution without necessarily needing a full suite of broader email deliverability tools. Their offering of 'enterprise grade solutions at extremely competitive price points' suggests a value proposition for those with specific DMARC needs.
MSPs could also find it suitable for clients primarily focused on DMARC compliance and email authentication. SMBs with tight budgets might find the custom pricing model potentially flexible, but without clear tiers, it's hard to say definitively if it's within reach for all small businesses.
How does InboxMonster compare with Postmastery?
DMARC report analysis
Ability to parse and visualize DMARC aggregate reports.
Comprehensive DMARC reporting as part of Deliverability Suite.
Dedicated DMARC Reports module in Console.
Source detection
Identify legitimate and unauthorized sending sources.
Integral to deliverability monitoring and DMARC analysis.
Key function of DMARC reporting for security.
Forward detection
Mechanisms to track email forwarding impact on DMARC.
Understood as part of DMARC analysis.
Essential for accurate DMARC compliance monitoring.
Spoof detection
Identify and alert on email spoofing attempts.
Core DMARC benefit, actively monitored.
Primary function of a DMARC solution.
Notifications and alerts
Automated alerts for DMARC policy changes or issues.
Customizable alerts for deliverability and DMARC issues.
Likely feature for active DMARC monitoring.
Reporting
Customizable and shareable DMARC and deliverability reports.
Shareable custom reporting is a key feature.
DMARC Reports module provides essential data.
API
Programmatic access to data and functionalities.
API for MTA platform sync and validation mentioned in reviews.
Not explicitly detailed for DMARC module.
Multi-tenancy
Ability to manage multiple domains or clients from one account.
Well-suited for agencies or large organizations.
Implied by "enterprise grade solutions" and Console.
SPF flattening
Tools to manage SPF record lookup limits.
Not explicitly listed as a DMARC feature.
Not explicitly listed as a DMARC feature.
Hosted DMARC
Managed DMARC record hosting services.
Common offering within DMARC solutions.
Typically part of a comprehensive DMARC service.
BIMI
Support for Brand Indicators for Message Identification.
Not explicitly mentioned.
Not explicitly mentioned.
MTA-STS/TLS-RPT
Support for email transport security standards.
Not explicitly mentioned.
Not explicitly mentioned.
Blocklists and reputation
Monitoring of IP/domain reputation and blocklist (blacklist) status.
Explicitly offered in Deliverability Suite.
Not explicitly mentioned for DMARC Reports, more of a general deliverability feature.
AI copilot
AI-powered insights or assistance.
Offers Apple & Gmail AI summaries.
No mention of AI features.
DNS monitoring
Monitoring of DNS records relevant to email deliverability.
Implied as part of comprehensive deliverability monitoring.
Essential for DMARC record validation and monitoring.
Self hostable
Option to host the software on private servers.
SaaS platform only.
SaaS platform only.
Free trial/free tier
Availability of a free version or trial period.
No public free trial or tier available.
Offers a 14-day free trial.
Drawbacks and what to watch out for
InboxMonster, while highly praised for its comprehensive features and support, comes with a significant price tag and a potential for add-ons to increase costs. Some users may also find its extensive data overwhelming without consistent guidance. For Postmastery, the primary drawbacks stem from a lack of public transparency regarding pricing and limited public reviews, making it challenging to assess real-world user experiences or support effectiveness.
We have pulled the average ratings from G2 for each product, and also included the most recent negative reviews for each product in full. Positive reviews tend to have less detail and have a higher chance of being fraudulent, so negative reviews are a better signal for your decision.
4.9 / 5(44)
0 / 5(0)
Josie + InboxMonster has helped our email team tremendously!
4.0 / 5
What do you like best about Inbox Monster?
I'm newer to the email team that utilizes InboxMonster but from what I've gathered from my coworker who has worked with Josie and InboxMonster for over a year, Josie was instrumental in providing actionable insights to enhance deliverability.
What do you dislike about Inbox Monster?
We don't have a proper CRM tool to leverage so InboxMonster isn't as much a problem as the tool we're using for email.
What problems is Inbox Monster solving and how is that benefiting you?
At the beginning of the year, the team discussed solutions such as better domain/IP allocation, stricter demark policies, and monitoring iCloud; they also noted the impact of email frequency and rogue franchisees on complaint rates. Next steps included investigating unsubscribe inconsistencies, exploring click activity data, discussing IP address optimization, and a future demo of Inbox Monster's "Creative Projects" tool; Josie Garcia will also provide further ISP and deliverability information. Most recently, Josie shared SendGrid-specific recommendations, best practices, and provided platform training, including user management, notifications, campaign tagging, subscriber insights, and spam trap analysis.
Verified User in Maritime
Small-Business (50 or fewer emp.)
No G2 reviews
G2 is the most popular review platform for DMARC products, so this is a strong signal that this product is not popular.
Great toolset and helpful account support
4.0 / 5
What do you like best about Inbox Monster?
The toolset is very robust and they are consistently adding to the functionality. The account support has also been great and incredibly proactive. Thom is the best and always super helpful.
What do you dislike about Inbox Monster?
Right now, there is nothing currently that I do not like or appreciate about Inbox Monster.
What problems is Inbox Monster solving and how is that benefiting you?
Inbox Monster is helping us manage and get insight into deliverability problems when they arise. There is a great toolset that is built behind this management and the additional tools with respect to content rendering is super helpful.
Verified User in Publishing
Mid-Market (51-1000 emp.)
Valuable Deliverability Insights
4.5 / 5
What do you like best about Inbox Monster?
Inbox Monster provides a lot of valuable insights into how are email deliverability is across many different email service providers.
What do you dislike about Inbox Monster?
Inbox Monster has many features and data sets, but not all of the data feels immediately actionable and I don't understand what every feature does.
What problems is Inbox Monster solving and how is that benefiting you?
Before Inbox Monster, we couldn't see where our emails were landing or what seeds were having deliverability issues.
Verified User in Higher Education
Mid-Market (51-1000 emp.)
A Game-Changer for Email Deliverability
4.5 / 5
What do you like best about Inbox Monster?
Inbox Monster has been a life saver for our email program. We have worked with Josie for just under a year, but the amount of dedication and support she provided to analyze our deliverability, help us come up with an action plan to remediate our poor deliverability and sender reputation, and ongoing monitoring of trends after working through our issues, has played a significant role in the health and success of our email marketing.
Josie is always quick to respond and will walk through the issues with us, giving us valuable insights and recommendations along the way. My team does not have a strong background in deliverability, but Josie and the Inbox Monster team, has made a very technical part of email marketing very easy to understand and action against, allowing us to grow our skillset while also educating the rest of the company on deliverability best practices to ensure we do not fall into the same mess that we worked so hard to pull ourselves out of.
In October 2024, we found out, with the help of Inbox Monster, that our inbox rate with Gmail was at 1% with low sender reputation. After working with Josie, we were able to increase and maintain our Gmail inbox rate to 95-100% with high sender reputation within 4 months. I cannot recommend Inbox Monster enough.
What do you dislike about Inbox Monster?
Email deliverability is overwhelming. This is not an Inbox Monster issue. The team at Inbox Monster is incredibly knowledgeable and gives so much information. A lot of the time, the analysis is easy to follow while meeting with the Inbox Monster team, but the amount of numbers and tabs within the platform make it a little difficult to follow on our own. We have a wonderful support team who are willing to meet at our cadence to discuss, but it's a bit difficult to do our own analysis outside of those meetings.
What problems is Inbox Monster solving and how is that benefiting you?
Inbox Monster helps provide valuable insight to our email deliverability and sender reputation.
Verified User in Health, Wellness and Fitness
Enterprise (> 1000 emp.)
Great tool with excellent consulting support
4.5 / 5
What do you like best about Inbox Monster?
Clear reporting to understand our deliverability/inboxing, as well as domain/IP reputation factors. And the consulting services offered save us a ton of time, as they leverage existing relationships with email providers to troubleshoot/address inboxing issues. Super easy to use and onboard as well.
What do you dislike about Inbox Monster?
Everything is worth it, but the tool costs more than other deliverability platforms, however, that's largely because they are taking on the work of coordinating with email providers
What problems is Inbox Monster solving and how is that benefiting you?
They offer a one-stop shop of crucial information to understand our sending domain/ip health, and most importantly, offer services that help us work with email providers quickly and effectively. This saves our team a ton of time we would otherwise have to spend coordinating with each ESP
4.9 / 5(44)
