Yes. You can verify any @Shaw.ca address in real time with a direct SMTP handshake that provides 99.7% accuracy. Shaw.ca is operated by Shaw Communications, runs 1 mail server, enforces 2 of 3 authentication standards, and is currently responding to SMTP.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
shaw.ca publishes 1 MX record. The primary mail exchanger is shw-central.mx.a.cloudfilter.net, hosted by cloudfilter.net, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 0 | shw-central.mx.a.cloudfilter.net | 15.222.199.59 | Reachable |
220 shw-ibgw-4003b.ext.cloudfilter.net cmsmtp ESMTP server readyYes. shaw.ca is a valid email domain, operated by Shaw Communications. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Shaw.ca's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
Free inboxes get abandoned constantly. Verification drops the dead shaw.ca mailboxes before you mail them.
Mistyped shaw.ca addresses fail a real SMTP check, so they never turn into a hard bounce.
A clean list keeps your bounce rate low, and a low bounce rate is what protects inbox placement on a big send.
Mailing only live shaw.ca addresses raises every rate that matters: opens, clicks, and replies.
Shaw.ca is Shaw Communications, registered through Webnames.ca Inc. and first seen Oct 30, 2000.
shaw.ca is a Canadian ISP domain from Shaw Communications, a major broadband and cable provider in Western Canada now merged with Rogers Communications. Based in Calgary, Shaw provided broadband, TV, and phone services.
shaw.ca implements SPF authentication. Compliant with Canadian PIPEDA and CASL.
The mail servers validate recipients and reject invalid addresses. The domain does not function as catch-all.
For delivery, authenticate with SPF. Comply with CASL.
Upload a CSV or TXT list of Shaw.ca addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Shaw.ca address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
Yes, shaw.ca is a valid email domain provided by Shaw Communications to its internet service subscribers.
No, shaw.ca is an ISP email domain from Shaw Communications, provided to subscribers as part of their internet service package.
shaw.ca uses mail servers operated by Shaw Communications. Check the MX records section above for details.
Yes, with opt-in consent. ISP email addresses may become inactive if the subscriber cancels service. Regular list verification helps maintain deliverability.
ISP email addresses at shaw.ca can be verified via SMTP checks. Addresses can become invalid when subscribers change providers.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with shaw.ca's mail servers, the same engine that has verified billions of addresses since 2012.
Other isp email provider domains we have audited.