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Free DMARC Weekly Digests by Postmark vs InboxMonster

Choose Free DMARC Weekly Digests for basic DMARC reports, choose InboxMonster for comprehensive deliverability insights.
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Compare product functionality

Feature set

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Free DMARC Weekly Digests by Postmark offers a straightforward approach to DMARC monitoring. Our experience shows it provides aggregated DMARC reports, focusing on the top 10 mail sources and up to 5 IP addresses per source. This gives a foundational view of email authentication.
It's a no-frills service, delivering weekly digests directly to your inbox. This means you don't get an interactive web dashboard for real-time analysis or detailed drill-downs. The insights are presented as actionable recommendations within the email itself, which can be convenient for quick checks but limiting for deeper investigations.
InboxMonster delivers a much more comprehensive suite for email deliverability, including DMARC monitoring. We found its platform provides full visibility into all mail sources and IPs, offering a granular understanding of your email ecosystem. Beyond DMARC, it delves into critical areas like weighted inbox placement, spam trap monitoring, and real-time blocklist (or blacklist) checks.
Their feature set extends to creative proofing, device renderings, and AI summaries for major inbox providers like Apple and Gmail. The detailed reputation analysis, coupled with shareable custom reporting, positions InboxMonster as a robust tool for optimizing email channel performance across the board. They're definitely not just about DMARC.
How easy is each product to use

User experience

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From our perspective, the user experience for Free DMARC Weekly Digests by Postmark is defined by its simplicity, primarily because there's no dedicated web dashboard. Setup is typically straightforward, involving adding a DMARC record to your DNS.
Once configured, you simply receive weekly email reports. This low-touch approach means minimal daily interaction, which is great if you prefer passive monitoring. However, for those who appreciate interactive data exploration, the lack of a dashboard might feel like a significant limitation. It's truly a "set it and forget it" solution, until the weekly email arrives.
InboxMonster, on the other hand, provides a rich, interactive web dashboard. We found the initial "white glove setup" ensures a smooth onboarding, which is beneficial given the breadth of features. While the platform offers extensive data and functionalities, some users might experience a learning curve to fully grasp all the available insights, as noted in some user feedback.
Despite the potential initial complexity, the intuitive UI and consistent improvements based on user feedback make it manageable. Having a dedicated platform allows for in-depth analysis and custom reporting, offering a far more dynamic user experience than email-only digests. Our team appreciated the ability to quickly identify and address issues, rather than waiting for a weekly report.
Which product has the best support

Support

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For Free DMARC Weekly Digests by Postmark, support is generally channeled through Postmark's broader customer service, which primarily focuses on their transactional email service. While Postmark is known for good support, our experience with the free DMARC product is that direct, dedicated support for DMARC specific issues is limited.
Being a free offering, the expectation for in-depth, personalized support is naturally lower. Users are largely reliant on Postmark's documentation and the information provided within the weekly digests. It's a self-service model for the DMARC component, which is standard for free tools.
InboxMonster prides itself on its "white glove set up" and real-time platform support. Our interactions confirm that their support team is highly responsive, knowledgeable, and proactive. They offer dedicated account managers who provide actionable insights and help troubleshoot deliverability issues, going beyond just DMARC.
Many users highlight the invaluable assistance from their consultants in analyzing deliverability, creating action plans, and ongoing monitoring. This hands-on approach, including regular check-ins and proactive alerts, makes InboxMonster a strong partner for managing complex email programs. They genuinely act as an extension of your team.
Who should use each product

Suitability

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Free DMARC Weekly Digests by Postmark is ideal for small businesses (SMBs) or individuals who need basic, cost-free DMARC oversight for personal or low-volume domains. It's excellent for those just starting with DMARC or who simply need a periodic report without diving deep into analytics.
This tool is not suitable for enterprise-level organizations or Managed Service Providers (MSPs) requiring comprehensive DMARC enforcement, multi-domain management, or detailed forensic reporting. Its limited data visibility and lack of a dashboard would quickly become a bottleneck for larger operations with complex email infrastructures.
InboxMonster is best suited for mid-market and enterprise companies with significant email volume and complex deliverability challenges. It's a powerful tool for marketing teams, email deliverability specialists, and even MSPs managing multiple client email programs who need in-depth insights and proactive support. Its comprehensive features address a wide array of email performance needs.
For enterprise, the platform's robust reporting, spam trap monitoring, and dedicated account management provide the necessary tools and expertise to maintain high inbox placement and sender reputation. While suitable for larger SMBs with advanced needs, the pricing might be a barrier for very small businesses.

How does Free DMARC Weekly Digests by Postmark compare with InboxMonster?

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DMARC report analysis
Source detection
Forward detection
Spoof detection
Notifications and alerts
Reporting
API
Multi-tenancy
SPF flattening
Hosted DMARC
BIMI
MTA-STS/TLS-RPT
Blocklists and reputation
AI copilot
DNS monitoring
Self hostable
Free trial/free tier

Drawbacks and what to watch out for

While Free DMARC Weekly Digests by Postmark provides a convenient and free basic DMARC overview, its main drawback is its limited functionality and lack of an interactive dashboard. This can hinder in-depth analysis and timely issue resolution. For InboxMonster, the primary concern for some users might be its higher price point and the initial learning curve associated with its extensive feature set.
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.
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Not the best
What do you like best about ActiveCampaign Postmark? It works. Their API is easy-to-use and we never experienced any downtime. What do you dislike about ActiveCampaign Postmark? The price is too high for what we get. Also their administration panel and Analytics graphs are not user friendly. Recommendations to others considering ActiveCampaign Postmark: Check Mandrill as alternative. What problems is ActiveCampaign Postmark solving and how is that benefiting you? We use Postmark as secondary provider to send emails. We send ~100M emails per week.
Verified User in Online Media
Mid-Market (51-1000 emp.)
Josie + InboxMonster has helped our email team tremendously!
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.)
A clean simple api
What do you like best about ActiveCampaign Postmark? Postmark has been simple and reliable in the 2+ years I've used them. Their API has a fast response time and their batch send calls has been helpful in maintaining a quick response time on our service. They've also been generous in giving us free credits from time to time. They provide webhooks for events you are interested in e.g. bounced emails, spam reports. Their documentation is extensive and comprehensive and also includes libraries for several languages (we use them with python and php). What do you dislike about ActiveCampaign Postmark? Some of the new features Postmark has added aren't as simple as their first product, especially the email templates. Their admin interface also is weird in that it only lets you look at 30 day periods for statistics (we track our own analytics so it's less of an issue for us). Recommendations to others considering ActiveCampaign Postmark: Postmark quickly and effectively help us getting transactional email up for our service. We've evaluated switching to Mailgun (since we get it for free) however right now postmark seems to have the simpler API. What problems is ActiveCampaign Postmark solving and how is that benefiting you? Postmark helped us quickly and effectively add an outside transactional email provider instead of sending SMTP emails. It's also helped ensure that our app stays quick when we were originally directly calling it from the application thread. We've had no problem with getting marked as spam or deliverability and their open tracking by email client has been helpful. We've sent 200,000+ emails with postmark so far.
John P.
Software Engineer II Financial Services Mid-Market (51-1000 emp.)
Great toolset and helpful account support
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.)
Speed at a low price
What do you like best about ActiveCampaign Postmark? I really appreciate the speed with which I receive emails. It's very important to me that customers receive emails on time because otherwise we can miss out on some business. What do you dislike about ActiveCampaign Postmark? I don't like the fact that sometimes Mustachio, which is the language used to write emails, is a bit old-fashioned and I have to find other ways to do things that could be done in a more simple way. What problems is ActiveCampaign Postmark solving and how is that benefiting you? Postmark helps me send emails to my customers and retrieve data on email opens. This allows me to have complete control and visibility over the email communications sent.
Ange B.
software engineer Small-Business (50 or fewer emp.)
Valuable Deliverability Insights
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.)
Excellent service, premium price
What do you like best about ActiveCampaign Postmark? The focus on transactional-only email and high deliverability is awesome; most small senders don't have the volume to justify the dedicated IPs every other transactional email provider seems to be pushing. The UI is nice. Documentation is good and API is easy to use. No complaints. What do you dislike about ActiveCampaign Postmark? The price is high and there's no free starter/low-volume plan. If slightly better deliverability is not critical for your use case, look elsewhere for more competitively priced solutions. Recommendations to others considering ActiveCampaign Postmark: If you're not price sensitive and you're looking for something simple with good support that just works, Postmark is a great choice. What problems is ActiveCampaign Postmark solving and how is that benefiting you? Sending transactional email (password resets, email verifications, etc.)
Verified User in Computer Software
Small-Business (50 or fewer emp.)
A Game-Changer for Email Deliverability
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.)
The Most Seamless & User-friendly Transactional Email delivery system for TruckX
What do you like best about ActiveCampaign Postmark? Email delivery and trust with our customers is our first priority at www.TruckX.com, so Postmark is our go-to for Email APIs because automated emails can be created and managed smoothly. What do you dislike about ActiveCampaign Postmark? Their analytics could be even more detailed in examining how the data performs. What problems is ActiveCampaign Postmark solving and how is that benefiting you? By ensuring that we deliver all www.TruckX.com ’s customer-facing transactional emails without delay, Postmark helps us ensure that our customers are happy and our operations are running smoothly. It has helped us become one of the best ELD brands for owner-operators and mid-sized fleets
Ramesh K.
Associate Product Manager Mid-Market (51-1000 emp.)
Great tool with excellent consulting support
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
Brandon G.
Senior Manager, Marketing Operations Mid-Market (51-1000 emp.)

Pricing

Free DMARC Weekly Digests by Postmark is, as the name suggests, completely free, whereas InboxMonster's comprehensive suites come with a significant annual investment.
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Small
Free
Contact for pricing (Deliverability suite starts at $15,000 yearly)
Medium
Free
Contact for pricing (Deliverability suite starts at $15,000 yearly)
Large
Free
Contact for pricing (Deliverability suite starts at $15,000 yearly)
Enterprise
Free
Contact for pricing (Custom pricing available)

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What makes Suped different

Automated sender discovery that finds shadow IT and third-party services
DMARC copilot that pinpoints failures and prescribes the exact fix
Guided path to full p=reject enforcement, safely and quickly
Proactive alerts to prevent misconfigurations before they block your mail
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Frequently asked questions

    Free DMARC Weekly Digests by Postmark vs InboxMonster DMARC product review - Compare DMARC products - Suped