Analyze your deliverability: SPF, DKIM, DMARC, BIMI, TLS, blocklists, IP reputation, spam score, readability, Google/Yahoo compliance. 11 free tools + continuous monitoring.
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Receive, parse and visualize reports sent by Gmail, Microsoft and Yahoo. Identify at a glance the authorized, suspicious or unknown sources sending on your behalf.
Receive and analyze aggregate reports from Gmail, Microsoft, Yahoo. Identify authorized and suspicious sending sources.
Collect TLS-RPT reports, validate your MTA-STS policy and verify DANE/TLSA records.
Visualize which IPs and domains send on your behalf: authorized, misaligned or suspicious. Strengthen your DMARC policy with confidence.
DNS scan every 48h on the free plan and every 12h from Pro, SSL monitoring, real-time alerts on DNS changes, RBL listings and expirations.
Every sending source is filed into one of those three categories. You see what to handle first, instead of reading XML.
Volume, DMARC compliance, SPF alignment and DKIM alignment at a glance, with how they move over time.
A map of sending countries immediately reveals traffic from regions you do not operate in.
Send an email, we handle the rest. Results in under a minute.
A unique address is generated for you. Send an email from the server you want to test.
Over 20 checks run in parallel: authentication, DNS, blocklists, IP reputation, content, spam filters.
Get your score out of 100 with visual indicators, detailed results and actionable tips.
Whether you send newsletters, transactional emails or manage client domains.
A misconfigured DNS record, a blocklisted IP, an expired certificate, it happens quietly and fast. With an account, you keep an eye on everything effortlessly.
All your reports are stored and accessible. Track your configuration improvements over time.
DNS monitoring, blocklists, records, we notify you as soon as a change is detected on your domains.
An email and a password is all it takes.
Want to understand what we check and why?
We check every critical point so your emails reach their destination.
The Sender Audit extension adds an analyse button to Gmail and Outlook. Authentication, sending IP reputation and spam score for the message you are reading.
Check and generate your DNS records in a few clicks.
Group your domains and IPs by client or by brand, invite your team with the right level of access, and route alerts where they belong.
One name, one filter. The dashboard narrows to a single client or brand.
Owner, admin, billing or member. Billing stays separate from scan data.
Notifications go to the address of your choice, not necessarily the account one.
The free plan covers the full analysis and monitoring for your main domain. Pro adds the advanced analyses and heatmaps; Team and Business add DMARC monitoring across several domains, seed addresses and the API.
Over 40 checks: SPF, DKIM, DMARC, BIMI, DNSSEC, MX, TLS/STARTTLS, MTA-STS, IP & domain blocklists, spam score (SpamAssassin + Rspamd), readability, subject line quality, image accessibility, broken links, tracking pixels and Google/Yahoo bulk compliance.
Yes. The full analysis is free with no signup. A free account unlocks scan history, domain monitoring and real-time alerts.
Send an email to the unique address generated on our homepage. Within seconds, you receive a detailed report with a score out of 100 covering authentication, security, reputation, content quality and compliance.
Sender Audit offers 11 free tools: SPF Checker, SPF Generator, DKIM Checker, DMARC Checker, DMARC Generator, BIMI Checker, Blocklist Checker, Email Header Analyzer, TLS-RPT Checker, MTA-STS Checker and DNS Checker.
Yes. We check all requirements for bulk senders: DMARC authentication with alignment, List-Unsubscribe header with one-click support, proper SPF/DKIM setup, and low spam complaint rates.
With a free account, your domains are scanned every 48 hours, and every 12 hours from the Pro plan. You receive instant alerts when DNS records change, IPs get blocklisted, SSL certificates near expiry, or DMARC/TLS-RPT reports arrive.
Yes. Every analysis runs your message through SpamAssassin and Rspamd, the two engines used by a large share of receiving servers. The report details each rule triggered and its impact on the score, so you can fix it before sending.