About us
About DMARCTrust
DMARCTrust is a DMARC monitoring platform that shows every source sending email as your domain and which ones fail authentication, for small businesses, SaaS and e-commerce teams without an email engineer on staff.
What DMARCTrust does
DMARC report monitoring
Point your DMARC reporting address at DMARCTrust and every aggregate report from Google, Microsoft, Yahoo and other mailbox providers is parsed for you. Sending IPs are matched to the service behind them where it can be identified, so you see your email platform, CRM and helpdesk by name instead of raw XML.
A path to p=reject
DMARCTrust shows which sending sources fail SPF, DKIM or alignment, and how much of your mail each one carries, so you know what to fix before you raise your policy from p=none to quarantine and reject.
DNS change alerts
On Starter and Pro, DMARCTrust checks the email authentication records of each monitored domain every hour. You get an alert when a change is still in place on the following check, so an edit that breaks your mail does not go unnoticed.
MTA-STS and TLS-RPT
Receiver Shield protects the mail you receive. Free accounts get DNS audits and setup guidance, Starter adds TLS-RPT analytics on which senders fail encrypted delivery, and Pro adds a hosted MTA-STS policy, with the DNS records to publish generated for you.
Inbox Inspector
Send a message to your monitoring address and see the SPF, DKIM and DMARC verdict it earned, along with the sending tool detected. Downloading the raw message is available on Starter and Pro.
Free tools
Anyone can use the DMARC record generator, the SPF, DKIM and BIMI checkers, and the DMARC report analyzer without an account.
What makes DMARCTrust different
Published pricing, cancel anytime
Free, Starter at $19 / C$26 / A$29 a month and Pro at $49 / C$67 / A$70 a month are listed on the pricing page, with two months free on annual billing. You can cancel from the billing dashboard at any time, with no cancellation fees.
A DMARC expert you can hire
Marc Lelu, who runs DMARCTrust, has completed more than 200 DMARC deployments. When you need hands-on help, you can work with him directly at $500 per hour, and the initial assessment is free.
An open-source report analyzer
Our free DMARC report analyzer is open source under the MIT license and runs entirely in your browser, so a report you check there never leaves your machine.
Comparing options? Read how DMARCTrust compares with dmarcian, Valimail and PowerDMARC.
Who uses DMARCTrust
- Small and mid-sized businesses, roughly 10 to 500 employees, where one IT person owns email and nobody specializes in DMARC.
- SaaS companies whose product email, marketing platform, CRM, helpdesk and billing tool all send as the same domain.
- E-commerce teams whose order, shipping and marketing email go out through different third-party services.
The team behind DMARCTrust
DMARCTrust is run by Marc Lelu, a DMARC consultant who works with customers directly. Marc and Florian Le Goff met at Mailjet, the Paris email platform, where Marc built delivery infrastructure and Florian built developer tools. DMARCTrust started when one of Marc's retail clients was still stuck at p=none 18 months into a DMARC rollout, for lack of a tool that mapped every sender and showed the way to p=reject. Marc called Florian, and two weeks later they started building.
Marc Lelu
Runs DMARCTrust · DMARC consultant
Marc spent his first decade in email infrastructure, first at Orange, then as an early hire at Mailjet building its delivery systems. He then went independent, helping enterprises reach DMARC enforcement without breaking their outbound mail.
His method is the one DMARCTrust is built around: map every sending source, fix third parties one by one, and only move to p=reject once nothing legitimate will bounce.
Florian Le Goff
Founder
Florian joined Mailjet as an engineer, spoke at Paris-Web in 2011 and 2013, and in 2015 founded FLGXPL, the Paris software company that operates DMARCTrust. He built the product's first engineering foundations. He is no longer involved day to day and lends Marc a hand from time to time.
How DMARCTrust works
- Create a free account and add your domain.
- Add your DMARCTrust reporting address to the
ruatag of your DMARC record. - Mailbox providers send aggregate reports once a day for the domains that sent them mail, so once your domain is sending, your first report should arrive within 24 to 48 hours.
- Fix the sending sources DMARCTrust flags, then raise your policy to quarantine and reject.
For support, write to [email protected] or use the chat on the site. On paid plans we aim to reply within one business day, Paris time.
If you would rather have someone do the rollout with you, Marc takes on consulting engagements with a free initial assessment and a written quote before any work starts.
Key facts
| Company name | DMARCTrust |
|---|---|
| Type | SaaS: DMARC monitoring and email authentication platform |
| Founded | 2015 (FLGXPL, the company that operates DMARCTrust). DMARCTrust launched in 2025. |
| Run by | Marc Lelu, DMARC consultant and co-founder of DMARCTrust |
| Founder | Florian Le Goff |
| Operating company | FLGXPL, RCS Paris 810 794 164 |
| Headquarters | 231 rue Saint-Honoré, 75001 Paris, France |
| Website | www.dmarctrust.com |
| Core offering | DMARC report monitoring that shows which sending sources fail authentication |
| Pricing | Free; Starter $19 / C$26 / A$29 a month; Pro $49 / C$67 / A$70 a month; two months free on annual billing. See pricing |
| Contract terms | Monthly or annual billing; cancel anytime, no cancellation fees |
| Services | DMARC monitoring, DNS change alerts, MTA-STS and TLS-RPT, Inbox Inspector, free tools, DMARC consulting |
| Communication | [email protected] and site chat; on paid plans we aim to reply within one business day |
| Customers served | SMBs, SaaS and e-commerce teams. In week 38 of 2026, 2.6M emails were analyzed on paid customer domains and 99% of customer mail passed DMARC. |
| Listed on | G2, Capterra |
| Competitors | dmarcian, Valimail, PowerDMARC |
| Social | X, LinkedIn, GitHub |
Frequently asked questions
Is there a free plan?
Yes. The Free plan monitors DMARC aggregate reports for one domain, with details for 50 reports a month and 7 days of history. Starter adds DNS change alerts, a second domain and 90 days of history.
Do I have to sign a contract?
No. Plans are billed monthly or annually, with two months free on annual billing. You can cancel anytime from the billing dashboard; access runs to the end of the period you paid for and there are no cancellation fees.
How soon will I see data?
Mailbox providers such as Google, Microsoft and Yahoo send DMARC aggregate reports once a day for the domains that sent them mail. If your domain is sending email, your first report should arrive within 24 to 48 hours of adding your DMARCTrust reporting address.
How long does it take to reach p=reject?
Typically 4 to 6 weeks for a single domain with a few sending services, and 3 to 6 months for organizations with dozens of domains and many third-party senders. The platform shows which sources still fail, so you know when raising the policy is safe.
Can someone help us set it up?
Yes. Marc Lelu, who runs DMARCTrust, takes on hands-on DMARC and deliverability work at $500 per hour, and the initial assessment is free. You get a written quote before any work starts.
Who is behind DMARCTrust?
DMARCTrust is run by Marc Lelu, a DMARC consultant with more than 200 deployments. It was founded by Florian Le Goff, whose Paris company FLGXPL operates the service; Florian now helps Marc occasionally.
Ready to reach p=reject?
Start with the platform, or talk to Marc directly if you need hands-on help.