cmcc.ca

Email infrastructure report · Last checked 28 Jul 2026, 19:19 UTC

Summary

cmcc.ca uses Microsoft 365 for email and has SPF, DKIM, and DMARC configured. It is not catch-all.

Mail provider

ProviderMicrosoft 365 business

Primary MXcmcc-ca.mail.protection.outlook.com

MX records

Priority	Hostname	IPs
1	cmcc-ca.mail.protection.outlook.com	52.101.190.0, 52.101.190.2, 52.101.190.1, 52.101.192.0, 2a01:111:f403:c942::1, 2a01:111:f403:c942::, 2a01:111:f403:c944::, 2a01:111:f403:c942::2

Authentication

SPF✓ Present ~all

DKIM✓ Found (selectors: selector1, s1, s2)

DMARC✓ Present p=quarantine

Raw SPF record

v=spf1 ip4:204.92.98.68 ip4:52.60.110.142 ip4:192.159.177.120 ip4:192.159.177.100 ip4:54.39.64.68 ip4:206.187.4.233 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:outboundmail.convio.net include:store.cmcc.ca.spf.auto.dnssmarthost.net ~all

Raw DMARC record

v=DMARC1; p=quarantine; pct=100; rua=mailto:j6kvypbj@ag.ca.dmarcian.com;

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response228ms

SMTP banner220 TO1PEPF00005344.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Tue, 28 Jul 2026 19:19:22 +0000 [08DEECA03A2A028B]

What this means

This domain has strong email authentication. Messages claiming to come from @cmcc.ca can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

Refresh this report

Cached results are kept indefinitely. If you think the data above is out of date, run a fresh check below. Refreshes are rate-limited (1 per domain every 5 minutes).

Want to verify individual addresses at cmcc.ca?

CheckMail's API verifies real-time deliverability with SMTP checks, not just DNS lookups. 100 free credits, no credit card required.

Get an API key →

curl https://api.checkmail.dev/v1/verify \
  -G --data-urlencode "email=test@cmcc.ca" \
  -H "Authorization: Bearer cm_live_..."