Domain Intelligence
Last Updated:
Cp.ca
High Risk
Cp.ca is operated by Canadian Pacific Railway. The domain runs no MX records and SMTP is not currently responding, with no email authentication detected.
Do Not Send
RISK
94
/100
Critical
Verify Mailbox
Verify @cp.ca emails
Live SMTP handshake against cp.ca mail servers. No email is sent. 10 free per day, no signup.
Trusted by 400,000+ senders
4.9/5
From 8,500+ verified reviews
Switched after a billing dispute with NeverBounce. Same SMTP results on a 5k test sample. The MX, SPF, DKIM lookup tools are a hidden value-add for debugging client deliverability complaints. James Wexler · Growth Engineer
SOC 2 Type II
GDPR
CCPA
99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
No
Mail server not responding to SMTP
MX Records
0
Mail exchangers
Mail Exchange (MX) Records for cp.ca Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.
No MX records were found for this domain. The domain cannot receive mail.
SMTP Handshake
Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections.
No Response
Primary mail server did not respond to SMTP within the audit timeout. Mail to cp.ca may bounce.
cp.ca Email Authentication SPF · DKIM · DMARC
SPF
Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers.
Missing
No SPF TXT record published for cp.ca.
No valid SPF record was published. Receivers cannot confirm which servers are allowed to send mail for this domain.
DKIM
DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS.
Missing
No DKIM signature detected on common selectors for cp.ca.
No DKIM signature was detected. Receivers cannot verify the integrity of outbound mail.
DMARC
Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject.
Missing
No DMARC record published at _dmarc.cp.ca.
No DMARC policy is published. Receivers have no instruction for handling failed messages from this domain.
cp.ca Domain Registration WHOIS · Nameservers · Registrar
RegistrarMyID.ca INC.
IANA IDnot applicable
RegisteredNovember 9, 2016
Last UpdatedDecember 24, 2025
ExpiresNovember 9, 2026
Age9 years
TLD.ca
Authoritative Nameservers (2)
- ns.myidhosting.com
- ns2.myidhosting.com
Registrant
Hidden by registrar privacy service
Technical Contact
Hidden by registrar privacy service
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Common Questions About cp.ca
Is cp.ca a disposable or temporary email provider?
No. cp.ca is not a disposable email provider. It is classified as Corporate Email operated by Canadian Pacific Railway and addresses on cp.ca are persistent rather than throwaway. Mail sent to a valid cp.ca mailbox reaches a real recipient.
How do I verify if a cp.ca email address is valid?
The fastest way to verify a cp.ca email address is to use our free email checker. Enter any @cp.ca mailbox at the top of this page and our system performs a real-time SMTP handshake against cp.ca's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a cp.ca email exists without sending a message?
Yes. Our real-time email verification API connects directly to cp.ca's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the cp.ca mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for cp.ca?
cp.ca has no MX records published, which means the domain cannot currently receive email. Any message sent to a cp.ca address will hard-bounce at the sending server.
Does cp.ca use SPF, DKIM, and DMARC email authentication?
cp.ca does not currently publish any of the three standard email authentication records (SPF, DKIM, DMARC). This means receivers have no automated way to confirm whether mail claiming to come from @cp.ca is legitimate, which can hurt deliverability and increases the risk of spoofing.
Why do emails to cp.ca bounce or get blocked?
Bounces from cp.ca usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to cp.ca's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so cp.ca's receivers trust you.
How can I verify a large list of cp.ca email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of cp.ca addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, cp.ca catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from cp.ca email addresses?
Yes, with normal hygiene. cp.ca is a legitimate email service and signups from @cp.ca behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block cp.ca by default.
What email format does cp.ca use for usernames?
Most cp.ca mailboxes follow common patterns like first.last@cp.ca, firstinitiallast@cp.ca, or first@cp.ca, but the actual local-part rules depend on Canadian Pacific Railway. The only reliable way to confirm whether a specific @cp.ca address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the cp.ca risk score calculated?
The 0-to-100 risk score for cp.ca combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The cp.ca score is recomputed on every audit so it always reflects the live state of the domain.
Is cp.ca a valid corporate email domain?
Yes, cp.ca is the official corporate email domain for Canadian Pacific Railway. It is used for internal business communications and is not available for public registration.
Is cp.ca a disposable or temporary email provider?
No, cp.ca is a corporate email domain belonging to Canadian Pacific Railway, used exclusively by employees and authorized personnel.
What mail server does cp.ca use?
cp.ca uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.
Can I send marketing emails to cp.ca addresses?
B2B marketing to cp.ca requires proper consent. Corporate domains may use catch-all configurations, so verify individual addresses before sending.
How do I verify an email address at cp.ca?
Corporate domains like cp.ca may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.