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Free DMARC Weekly Digests by Postmark vs MXtoolbox

Choose Postmark for simple, free weekly digests, or MXtoolbox for comprehensive monitoring and diagnostic tools.
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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. We receive weekly email digests that summarize our DMARC activity, showing the top 10 mail sources along with up to 5 IPs for each. The service is designed to give us a quick overview of our domain's DMARC compliance without requiring us to log into a dashboard.
This free service focuses on essential visibility, providing actionable recommendations directly within the email digests. It tracks DMARC report history for 7 days, which is sufficient for basic, ongoing monitoring but limits our ability to conduct deeper historical analysis. It's a 'set it and forget it' solution for those who primarily need an alert system for DMARC issues.
MXtoolbox, on the other hand, provides a more extensive suite of tools beyond just DMARC, particularly with its paid Delivery Center plans. While its free tier focuses on weekly blacklist monitoring, the paid options include comprehensive DMARC deployment assistance, verified source management, SPF and DKIM configuration monitoring, and detailed DMARC analytics through a web dashboard.
We found that MXtoolbox's paid features empower us with advanced diagnostic capabilities, including domain impersonation protection and the ability to analyze email delivery performance. They offer more granular control and visibility, with a focus on active management and resolution of email deliverability issues, rather than just passive reporting.
How easy is each product to use

User experience

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The user experience for Free DMARC Weekly Digests by Postmark is inherently simple because there's no web dashboard to navigate. Setup involves adding a DMARC record, and then we simply receive weekly email reports. This streamlined approach means minimal interaction once configured, which can be a huge plus for users who prefer hands-off monitoring.
However, this simplicity comes with limitations. Without a dashboard, deeper dives into data or on-demand reporting are not possible. We rely entirely on the structured information provided in the weekly digests, which may not always contain the specific details we might want to explore at a given moment.
MXtoolbox offers a more interactive user experience, particularly within its paid Delivery Center. The web dashboard provides a central hub for managing domains, viewing analytics, and diagnosing issues. While their free tools are quick lookup utilities, the paid platform allows for a more proactive and detailed management of email deliverability. Navigating their site can sometimes feel like clicking through multiple links to reach a specific report, but the overall functionality is robust.
We appreciate the comprehensive nature of the MXtoolbox platform, which integrates various diagnostic tools into one place. While the UI can feel a bit dated at times, its strength lies in the depth of information it presents, allowing us to drill down into specific records and analyze our email health. It's a powerful toolkit for those who need to actively manage their email infrastructure.
Which product has the best support

Support

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For Free DMARC Weekly Digests by Postmark, support is primarily through their reputation for excellent customer service on their main transactional email product. While direct dedicated support for the free DMARC tool isn't as prominent as for their paid services, their general support ethos suggests a helpful, responsive team. We expect that any issues with the DMARC digests would be addressed promptly, likely through email-based assistance.
The focus of this free product is automation and simplicity, so the need for direct, hands-on support is minimized. However, if we encountered a complex DMARC issue that wasn't immediately clear from the email reports, we would rely on Postmark's general support channels to provide guidance and clarification, drawing from their deep expertise in email deliverability.
MXtoolbox offers various support channels, including a ticketing system for active subscribers and phone support. Reviews indicate that support can be a mixed experience, particularly concerning billing issues or trial cancellations, which some users found difficult to resolve. For technical queries related to their paid Delivery Center features, we generally find the documentation and their support staff knowledgeable, helping us with complex DNS or DMARC configurations.
Their platform also includes tooltips and guides that assist us in understanding and fixing issues, which can reduce the need for direct support contact. While we've seen some criticisms regarding their customer service, particularly the lack of an easy online cancellation process, their technical support for product usage is typically adequate for diagnosing and resolving email delivery problems.
Who should use each product

Suitability

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Free DMARC Weekly Digests by Postmark is ideal for small businesses (SMBs) and individuals who need a foundational understanding of their DMARC compliance without any cost or extensive setup. It's perfect for those just starting with DMARC or who manage a personal domain and require periodic, actionable insights via email. It is not designed for multi-user environments or deep historical analysis, making it less suitable for enterprise clients or MSPs.
For MSPs, enterprise, or even larger SMBs, the lack of a web dashboard and user management means this product wouldn't scale to their needs. It serves best as a simple monitoring tool for a single domain, offering a basic but reliable overview of DMARC authentication and spoofing attempts. We see it as an excellent entry point into DMARC without financial commitment.
MXtoolbox, particularly its paid Delivery Center tiers, caters to SMBs, enterprises, and MSPs that require comprehensive email deliverability management. Its suite of tools, including DMARC analytics, SPF flattening, and extensive blocklist monitoring, makes it suitable for organizations with complex email infrastructures or those managing multiple client domains. The ability to monitor inbound and outbound mailflow, coupled with advanced threat tools, aligns well with the demands of managed service providers.
While MXtoolbox offers a free tier for blacklist monitoring, the full DMARC reporting and management capabilities are unlocked in its paid plans. This makes it a viable option for businesses that prioritize detailed insights, proactive monitoring, and a centralized dashboard for their email security and deliverability. It's especially beneficial for MSPs managing multiple domains and enterprise environments that need robust protection against impersonation and phishing.

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

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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

When we look at the drawbacks, Postmark's free DMARC digests are limited by their simplicity, offering no web dashboard, restricted report history, and only top-level source visibility. MXtoolbox, while powerful, has faced significant criticism regarding its billing practices and the transparency of its "risk-free" trial, which some users reported as deceptive.
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.)
Business Practices are scammy
What do you like best about MXToolbox? It helped us solve the small issue we had with our emails going to customers spam folder. What do you dislike about MXToolbox? I initially signed up online for a month-to-month contract, but then a salesperson got a hold of me and sent me a quote. The quote he sent me was for a year contract which I did not want, so I signed up for the month to month. Once the problem was fixed I tried to cancel and I couldn't do it online. I emailed them and they told me I had to call them. After lots of back and fourth they told me I signed a year contract and I couldn't cancel. I would have never signed up for a year. It was a very scammy business practice. Eventually they stopped responding so I had to stop the payments from my credit card. Recommendations to others considering MXToolbox: I don't recommend them because of their shady business practices. What problems is MXToolbox solving and how is that benefiting you? fixing a problem with emails going to spam
Sam B.
IT Director Mid-Market (51-1000 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.)
Think twice before doing their paid plans. Deceptive "risk-free" 30 day trial
What do you like best about MXToolbox? I suspect many of the people responding favorably on this forum are using their free tools. Their free tools are very useful -- but think twice before upgrading to their paid plans. What do you dislike about MXToolbox? Like many other software vendors - they make an offer of a risk-free one-month trial. However, they don't actually refund you your money if you cancel before 30 days. Here is my example: I signed up for their delivery center option on November 10, 2018 and was promptly billed $99. I used the service for 2 days, realized the paid features were overkill for my own and customers' needs, so called to cancel November 12 (two days after signup.) They acknowledged my cancellation by email but never credited back my account for the $99. On December 17th I called their toll-free line. Matt on the phone said ("getting a refund would require managers approval and it's not a certain thing.") No sign of any refund as-yet, no confirmation from the company following the call of what to expect on refund. On December 15 I emailed. Their response to my email was "Sorry, we can't process that sort of thing by email. Either call or create a support ticket." Unfortunately, the support ticket option is available only for active subscribers -- so you are left with calling their phone system and having no record of exchange. Attached is an image from their website taken December 2018 in which they describe their "risk-free" offer. https://postimg.cc/mhgzm197 In summary -- Be aware that their free trial is not like how most other software vendors manage their trial promotions. They are opportunistic about billing you and (in my experience) don't honor the refund they promise as part of their risk-free trial. Recommendations to others considering MXToolbox: Use their free tools (they are good.) Their paid tools are overpriced, and they have a misleading "risk-free" plan that will end up costing you $99. What problems is MXToolbox solving and how is that benefiting you? Their free tools will help you diagnose MX configuration issues.
jon b.
Jon Small-Business (50 or fewer emp.)
Beware their "30 day free trial" of the Delivery Center!
What do you like best about MXToolbox? The free tools are good, and one wouldn't mind paying something for them, but one does object to being defrauded - see below. What do you dislike about MXToolbox? Tried to cancel free trial only a couple of days in, but $99 had been taken from my card and they have not responded to repeated requests to end it and refund the money. It looks like attempted fraud. What problems is MXToolbox solving and how is that benefiting you? Simple things like reverse DNS lookup helped us to check our email setup.
Alexander S.
Small-Business (50 or fewer emp.)
Makes email management easy
What do you like best about MXToolbox? -Affordable pricing -Setting up is very easy -Useful dashboards -Makes email reputation checks easier What do you dislike about MXToolbox? -This tool covers everything required for email management, there is nothing to dislike about. What problems is MXToolbox solving and how is that benefiting you? I have used this tool for domain reputation checking for phising mail analysis also I am using this for some of my projects to check mail deliverability and reputation of the domain to make sure the domain is not being blacklisted due to sending loads of emails.
Nitin R.
Software dev Small-Business (50 or fewer emp.)
MXToolBox is great for blacklist testing
What do you like best about MXToolbox? MXToolBox is suitable for Blacklists, DMARC, Diagnostics, Email Health, and DNS Lookup checks. What do you dislike about MXToolbox? For a free tool, I'd say MXToolBox is pretty top-notch. What problems is MXToolBox solving and how is that benefiting you? I used MXToolBox for DNS look-ups and blacklist checks.
Verified User in Marketing and Advertising
Enterprise (> 1000 emp.)

Pricing

Postmark provides its DMARC Weekly Digests entirely for free, while MXtoolbox offers a free tier for basic monitoring, with DMARC analytics and advanced features available through significantly higher-priced paid plans.
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Small
Free
Free (blacklist monitoring only); Delivery Center $129/month (5 domains, 500k emails)
Medium
Free
Delivery Center $129/month (5 domains, 500k emails)
Large
Free
Delivery Center $129/month (5 domains, 500k emails)
Enterprise
Free
Delivery Center Plus $399/month (5 domains, 5 million emails)

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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