All data displayed is public and provided by the DNS system.
Last checked 2 days ago
Your email authentication needs attention. Important security measures are missing or misconfigured.
Upgrade DMARC policy to quarantine or reject for stronger protection
DMARC improvement
19 / 50 points
DMARC record is valid but no reporting email is configured.
v=DMARC1; p=none
Without a reporting address (rua), you won't receive aggregate reports from email providers. These reports show who is sending email as your domain and whether authentication passes or fails.
Great! You have a DMARC policy in place. Now start receiving reports in your own monitoring inbox to track email authentication results and identify potential issues.
0 / 20 points
No BIMI Record Found
Publish a TXT record at default._bimi.crewportal.ca with v=BIMI1, logo URL (l=) and optional verified mark certificate (a=).
26 / 30 points
SPF record is valid.
v=spf1 ip4:24.79.51.180 include:shaw.ca ~all
Syntax Check
OK
DNS Lookup Count
4 / 10 max
Root-level mechanisms requiring DNS queries: 1.
Void Lookups
0 / 2 max
Soft fail: Mark emails from unauthorized servers as suspicious but don't reject
Grouped by DNS record source (includes and sub-includes)
This record also contains:
This record also contains:
SPF record found
crewportal.ca
TXT Record
v=spf1 mx ip4:3.97.99.32/31 ip4:3.97.99.42/31 ip4:64.59.134.0/25 ip4:64.59.136.128/27 ip4:204.209.208.40/31 ip4:204.209.208.150/28 include:amazonses.com ~all
Processed recursively per RFC 7208
MX records found: 1
MX Records:
SPF record found
shaw.ca
TXT Record
v=spf1 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/18 ip4:76.223.128.0/19 ip4:216.221.160.0/19 ip4:206.55.144.0/20 ip4:24.110.64.0/18 -all
Processed recursively per RFC 7208
0 / 10 points
TLS-RPT Not Configured
Publish a TXT record at _smtp._tls.crewportal.ca with v=TLSRPTv1 and reporting URI (rua=).
MTA-STS Not Configured
Publish a TXT record at _mta-sts.crewportal.ca with v=STSv1 and policy ID (id=).
The check you just ran shows your current configuration. But DNS records change, sometimes without you knowing. A well-meaning IT change, a third-party provider update, or an unauthorized modification can break your email delivery overnight.
Configuration Drift
IT changes that accidentally break authentication
Provider Updates
Third-party services changing their SPF includes
Unauthorized Changes
Attackers modifying records to send as you
DMARCTrust monitors your DNS records continuously. When something changes, you get an email alert with exactly what changed and why it matters. No more surprises when customers complain their emails bounced.
Run a free email authentication check (DMARC, SPF, BIMI).
We will generate a shareable URL for your domain.
Try popular examples: google.com, amazon.com, booking.com
Discover how other organizations configure their email authentication
Frequently checked
Also using none
Showing domains checked by our users. All data is from public DNS records.
We analyze your domain's email authentication: DMARC policy and alignment, SPF record and includes, and BIMI logo/CV when present.
Healthy authentication improves delivery and blocks spoofing. Major inbox providers increasingly require DMARC and robust SPF/DKIM practices for senders.
This check shows a snapshot. With DMARCTrust, you get continuous monitoring of your DMARC reports and DNS records, with instant alerts when something changes.
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