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Is cra-arc.gc.ca a valid email domain?

Organisation domainChecked 2026-11-06

cra-arc.gc.ca can receive email. It publishes 1 mail server, run by Microsoft (Outlook or Microsoft 365), and the first choice is craarc-gc-ca0i.mail.protection.outlook.com.

It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.

SPF is published and ends with -all. DMARC is set to reject.

Check an email address at cra-arc.gc.ca

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MX records (Microsoft (Outlook or Microsoft 365))

PriorityMail serverResolves to
0craarc-gc-ca0i.mail.protection.outlook.com52.101.190.2, 52.101.190.3

SPF

Record published

v=spf1 ip4:198.103.184.135 ip4:198.103.184.31 ip4:198.103.184.32 ip4:198.103.184.34 ip4:198.103.184.35 ip4:198.103.184.36/30 ip4:198.103.184.40 ip4:198.103.184.41  include:spf.protection.outlook.com include:emrs._spf.ssc-spc.gc.ca include:_spf.mailinvite.simplesurvey.com -all

DMARC

Policy: reject

v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc@cyber.gc.ca

Disposable?

No, not on our disposable list.

Free provider?

No, not a known free provider.

What this means for your email list

What this means for addresses at this domain

Mail routing for cra-arc.gc.ca is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.

Sender authentication

cra-arc.gc.ca has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as cra-arc.gc.ca must have SPF and DKIM set up correctly.

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Frequently asked questions

Is cra-arc.gc.ca a valid email domain?
Yes. cra-arc.gc.ca publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
Is cra-arc.gc.ca a disposable email domain?
No. cra-arc.gc.ca is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
What are the MX records for cra-arc.gc.ca?
craarc-gc-ca0i.mail.protection.outlook.com (priority 0).
Does cra-arc.gc.ca have SPF and DMARC?
SPF: yes, ending -all. DMARC: yes, policy reject.

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