Fix authentication issues that prevent your email from reaching the inbox and see who's sending using your domains.
Start a free 14-day trialLeading brands trust DMARC Stack to help protect their deliverability.
DMARC Stack makes it easy to identify email authentication issues causing DMARC failures and resolve problems that impact your deliverability.
Get visibility into how much email is sent using your brand's domain — and whether those emails reach the inbox.
Find sources sending unauthenticated email and investigate SPF and DKIM issues that cause DMARC failures.
Follow actionable guidance to resolve problems and get your emails back in the inbox.
Policy applied: Rejected · Emails: 24,394 (100%)
SPF failed as 192.168.2.125 is not authorized to send emails from nbrmail.com. Add this source to your SPF record to authenticate these messages.
The domain in the Return-Path header (google.com) does not align with the From domain (nbrmail.com). Set up a custom Return-Path using the nbrmail.com domain.
Signature domain gmail.mcsv.net · Selector google
The DKIM signature domain (gmail.mcsv.net) does not match the From domain (nbrmail.com). Sign these messages with a DKIM key on nbrmail.com to achieve alignment.
When recipients mark spoofed emails as spam it hurts your domain reputation, and legitimate email might no longer reach your customers.
Spoofing and phishing attacks damage your reputation with customers and email receivers.
Identify people using your domain to send fake emails and implement DMARC to stop those emails from reaching users.
View all mail sources along with their DMARC compliance for the past 60 days.
Weekly and monthly email digests highlight issues and provide guidance on how to fix them.
Invite team members to view reports so everyone can monitor your domains.
Protect your most valued domains
Before DMARC Stack we were just guessing at things that could be wrong. Now we can tell exactly why emails don't hit our users' inboxes at a glance and quickly catch new issues if/when they appear.
We use strict DMARC policies to make sure no bad actors can forge our emails. Thanks to DMARC Stack, we know that our own emails are sent according to these policies, and mail sending is configured properly.
We send a large volume of email and need to protect our brand. We looked at processing DMARC reports ourselves and it's a massive challenge. DMARC Stack is a snap to set up and does all the work for you.
Created by a small team focused on email deliverability.
Built to make DMARC reporting readable for humans, not just mail servers.