sjrb.ca - DNS, WHOIS, DMARC and SPF of the domain name

Summary

Registrar: Webnames.ca Inc.
Status: clientTransferProhibited
Created on: December 27, 2000
Expires on: December 27, 2026
Name servers: a1-220.akam.net, a6-65.akam.net, ns8socg.shawcable.net, a8-66.akam.net, a3-64.akam.net, ns9htok.shawcable.net, ns7nocg.shawcable.net, a9-67.akam.net
Mail servers: mx2.hc510-81.ca.iphmx.com, mx1.hc510-81.ca.iphmx.com
DMARC: Quarantine
SPF: Soft
DKIM: 3 keys found
Website: See the website

Spoofing protection (DMARC)

Quarantine

E-mails spoofing this domain are sent to spam.

DMARC tells mail servers what to do with an e-mail that claims to come from sjrb.ca but fails SPF and DKIM checks.

Policy: Quarantine
Subdomain policy: Quarantine
Messages covered: 100%
DKIM alignment: Relaxed
SPF alignment: Relaxed
Aggregate reports: [email protected], [email protected]
Failure reports: [email protected]

Record

v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]

Authorized senders (SPF)

Soft

E-mails sent by any other server are accepted but flagged as suspicious.

SPF lists the servers allowed to send e-mails for sjrb.ca.

Rule	Value	Result
include	sjrb.ca._nspf.vali.email	Allowed
include	%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email	Allowed
include	registrarmail.net	Allowed
all	—	Suspicious

Top-level DNS lookups: 3 of 10 allowed

Record

v=spf1 include:sjrb.ca._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:registrarmail.net ~all

E-mail signing (DKIM)

DKIM keys published by sjrb.ca under the most common selectors. Other keys may exist under selectors specific to each sending service.

Selector	Likely service	Key	Status
selector1	Microsoft 365	RSA 2048 bits	Active
selector2	Microsoft 365	RSA 2048 bits	Active
k1	Mailchimp	RSA 1024 bits · short	Active

RSA keys shorter than 2048 bits, called short keys, are discouraged: they are easier to break.

MX, SPF, DKIM and DMARC: the e-mail records

Four DNS records make a domain's e-mail work. MX says where e-mails sent to sjrb.ca arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from sjrb.ca was really sent by this domain, which protects it against spoofing.

MX

An MX (Mail Exchanger) record designates a server that receives e-mails sent to the domain. When someone writes to an @sjrb.ca address, their mail server queries the DNS for the domain's MX records, then delivers the message to the server they point to.

Example record

sjrb.ca  MX  10 mx1.sjrb.ca.
sjrb.ca  MX  20 mx2.sjrb.ca.

What the record contains

10, 20: Priority: the server with the lowest number is tried first. Servers with equal priority share the load.
mx1.sjrb.ca.: Host name of the mail server. It must point to an A or AAAA record: an IP address or an alias (CNAME) is not allowed here.
0 .: An MX "0 .", called a null MX, declares that the domain accepts no e-mail: sending servers give up at once instead of retrying.

Declaring at least two servers with different priorities avoids losing e-mails during an outage: sending servers retry for several days and fall back on the backup server. Without any MX, they try to deliver directly to the IP address of the domain.

SPF

SPF (Sender Policy Framework) is a TXT record listing the servers allowed to send e-mails on behalf of the domain. The receiving server checks that the sender is on this list. The final "all" rule says what to do with other servers: reject them (-all), flag their e-mails as suspicious (~all) or make no decision (?all).

Example record

sjrb.ca  TXT  "v=spf1 mx include:_spf.google.com ip4:192.0.2.10 -all"

What the record contains

v=spf1: Identifies the record as an SPF policy. It must come first.
ip4, ip6: Allows a specific IP address or an address range, for example ip4:192.0.2.0/24.
a, mx: Allows the addresses of the domain itself (A record) or those of its mail servers (MX).
include: Allows the servers of another domain, usually a sending service: include:_spf.google.com for Google Workspace.
-all, ~all: Final rule, applied to every other server. Its qualifier decides what happens to them: - rejects them, ~ flags their e-mails as suspicious, ? makes no decision, + accepts them (avoid it).

A domain must publish only one SPF record, and its evaluation cannot exceed 10 DNS lookups (include, a, mx, exists, redirect). Beyond that, mail servers treat it as invalid.

DKIM

DKIM (DomainKeys Identified Mail) signs every outgoing e-mail with a private key. The matching public key is published in a TXT record at selector._domainkey.sjrb.ca, so the recipient can check that the message really comes from the domain and was not altered on the way. The selector is chosen by each sending service and cannot be guessed: Dataweaz checks the most common ones (Google Workspace, Microsoft 365, Mailchimp, SendGrid…), so a key published under another selector may exist without appearing here.

Example record

google._domainkey.sjrb.ca  TXT  "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"

What the record contains

v=DKIM1: Protocol version. Optional but recommended, in which case it must come first.
k: Key algorithm: rsa, the most common, or ed25519.
p: Public key, base64-encoded. An empty value means the key has been revoked.
t: Flags: y marks a key in testing, whose failures must not be penalized; s forbids its use for subdomains.

Each sending service publishes its key under its own selector (google, selector1, k1…), which allows several keys and seamless rotation. A 2048-bit RSA key is recommended today.

DMARC

DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM. Published on _dmarc.sjrb.ca, it tells mail servers what to do with an e-mail that fails these checks (let it through, send it to spam or reject it) and where to send reports.

Example record

_dmarc.sjrb.ca  TXT  "v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r"

What the record contains

v=DMARC1: Identifies the record as a DMARC policy. It must come first.
p: Policy applied to e-mails that fail the checks: none (monitoring only), quarantine (spam folder) or reject.
sp: Subdomain policy. Without it, subdomains follow the domain's policy.
rua: Address that receives daily aggregate reports about e-mails sent on behalf of the domain, whether they pass the checks or not.
ruf: Address that receives detailed failure reports, message by message. Few providers still send them.
pct: Percentage of e-mails subject to the policy, for a gradual rollout. 100 by default.
adkim, aspf: DKIM and SPF alignment: r (relaxed, a subdomain of the same domain is enough) or s (strict, the domain must be identical).

To roll out DMARC without blocking legitimate e-mails, start with p=none and an rua address, analyze the reports to find every service sending on behalf of the domain, then move to quarantine and finally to reject.

DNS records of sjrb.ca

IP addresses (A and AAAA)

An A record maps the domain name to an IPv4 address: the address of the server that browsers contact to display the website. The AAAA record does the same for an IPv6 address. A domain can have several of them to spread visits across several servers.

Type	IP address
A	23.49.131.241

Name servers (NS)

NS records designate the authoritative DNS servers of the domain: they answer every question about its other records (A, MX, TXT…). They are provided by the registrar, the hosting provider or a dedicated DNS service, and several servers are declared so that the domain keeps working if one of them fails.

Server	IP address
a1-220.akam.net	193.108.91.220
a6-65.akam.net	23.211.133.65
ns8socg.shawcable.net	64.59.135.198
a8-66.akam.net	2.16.40.66
a3-64.akam.net	96.7.49.64
ns9htok.shawcable.net	64.59.168.62
ns7nocg.shawcable.net	64.59.135.214
a9-67.akam.net	184.85.248.67

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @sjrb.ca addresses. Each server has a priority: the one with the lowest number is tried first, the others take over if it fails. Without an MX record, the domain cannot receive e-mails.

Priority	Server	IP address
5	mx2.hc510-81.ca.iphmx.com	216.71.131.85
5	mx1.hc510-81.ca.iphmx.com	216.71.135.99

TXT records

TXT records hold free text. They are used to prove ownership of the domain to online services (Google, Microsoft, Facebook…) and to publish e-mail security rules: SPF on the domain itself, DMARC on _dmarc.sjrb.ca.

Name	Content
sjrb.ca	v=spf1 include:sjrb.ca._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:registrarmail.net ~all
sjrb.ca	apple-domain-verification=SdhnKpeB2MyKrIMb
sjrb.ca	adobe-idp-site-verification=b3919238-66b9-4219-8325-641cfe6deee4
sjrb.ca	MS=ms50229297
sjrb.ca	google-gws-recovery-domain-verification=65511411
sjrb.ca	_q2sgbk8dsrxafprokm8dls3p9g6yaie
sjrb.ca	_39jp3rduhuwzj37lf0c92kgipup70bi
sjrb.ca	jpC+tpK9WL7s2ocHZHmcakZMjkF7aAeRiOASUOx/ghWWBC/S3m4p07Mh+JDoEESTovdD98/6OLl1j6TMROE6bg==
sjrb.ca	google-site-verification=e7n31rroO8KivPSB0s7JKEWX1va4nxAO4gCitLpCe6w
sjrb.ca	4b59d7632ad0a0e2d72b0034b0349007545844a18a0d9b4bc468f99893ea054c
sjrb.ca	onetrust-domain-verification=9f6ad1a951754efa91c3dc19d25c5e56
sjrb.ca	cisco-ci-domain-verification=3d936fe586bfcaa13bef6702675d0241eafcc5e93d257dc5b69d122c6bd27f43
sjrb.ca	atlassian-domain-verification=TLqun2VjUty3NGkpcjkibdYNas4/EPBJBQfEwZxzaQlwD176bSPIgVXy187JGmbH
sjrb.ca	google-site-verification=019HjY2xmZyaXhlJeYpHgCbd5yT6BxknPxSYaPXCllI
sjrb.ca	onetrust-domain-verification=1fdecefcfeb0439e9b6bd48cec087192
sjrb.ca	a9d58d40-4f40-4914-a1c8-9f1823b5ba24
sjrb.ca	cisco-ci-domain-verification=7fcbcf68abfd60ca1c627c07d07afaba0b8c4f3dc7c97a3fbeca432e473946e0
sjrb.ca	13prgx0ts6c8ytj5n9l1qtx34qxxcbck
sjrb.ca	docusign=b1b2053d-4c01-4571-b883-ba2ec9ffe25f
sjrb.ca	google-gws-recovery-domain-verification=65699971
sjrb.ca	_jka6in6psv4p6yts46wruqx3fpdfz09
sjrb.ca	_0wmcmppbvmj94b21e4mg1mxui2gslm5
sjrb.ca	vmware-cloud-verification-c38f66ac-5d45-4a0d-9d5d-f65331e61003
sjrb.ca	google-site-verification=y2FSJMrL3pEDyDzlhkw8UrWe7QeNjBQ3NyYLV7d3K5Y
sjrb.ca	google-gws-recovery-domain-verification=65370900
sjrb.ca	9sqLemKlXD6I6LmrFaC2juSF8bdEmt5ihBA60EkCirbd9qCrcoWfKtUL6b/A0HB23Tfu9NGAuqvTEoVDa591dA==
sjrb.ca	Dynatrace-site-verification=18724657-fdae-423c-ac63-b42b1a1f57fd__7e6kqmfs97v75ks8ugfukqv746
sjrb.ca	icFmd3LVAPVqQ2OQy_nHgaqyjgQvcBjW3wNB0NTrjFk
sjrb.ca	knowbe4-site-verification=00679a0ad71c60b1af254f595912a18a
_dmarc.sjrb.ca	v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
selector1._domainkey.sjrb.ca	v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1e2tbXop1NQ+AX9b/fX1Gayodl1fptVd4PUwssZ6YmxE9pp/g07d/v5DwXew9iZs4xaklA6YRBxmkvJehjKbk+x4g8BDUuE+/uqTnTIRTIWIXLyq980iR9KCNZq5nXFu4m1pVALP1B3k2hJ+sSq8Lo/Xr3+ac2181vONu+GmD9VpkzLvyWR/rbzoqhpOvtMIeU4pgus2BwbMMl9ywiDe5M/iWnAF45pCf0zQBotz4k7dNd6wex9T9y/VRDnu0Jx9iqITquu/19OHofgwp/8KaK6jk7s9Y/VfhAPpeC2yqOFS/O8bChmbiq1ialVAMkopbvqVwgkMF/PaSjd8iGjqqQIDAQAB;
selector2._domainkey.sjrb.ca	v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyNh3jrCpQdw3pksAfRmtxGVJA3uW8/vMcrrJvKRdg+mk5TB7lP5ImNBmkJeg4e0BFBf4uJuc5/Jn95UchwHlc4LciAYsuNLXqsDDUQ9/2Hdpshpeb1mARkbZwGM6ZK1n00VXqpg1IyrAfNNTRbFszRXx/E+2LioN8q3NuMnEMZn588TIldwPuQxCUGgucpjhGXcuz/TZInfv4O8weD+/pE3pYaOGDAOj4Ak6Qfrr8PAV+ZjCjsQSb0FOzHT48D2prb3hRUkO4/+0wT7bSBbhZQa2RHyMMvVsB71b0C830P3cC3yHHTAnXvoNCQ84q0Xas6IHm87acejXvoAArI0C9QIDAQAB;
k1._domainkey.sjrb.ca	k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUoNyIR4Bn84LVcfZE20rmDeXQblIupNWBqLXM1Q+VieI/eZu/7k9/vOkLSaQQdml4Cv8lb3PcnluMVIhQIDAQAB;

Related IP addresses

IPv4 addresses used by sjrb.ca: website, name servers, mail servers and senders authorized by SPF.

IP address	Used for	/24 block
23.49.131.241	Website	23.49.131.0/24
193.108.91.220	Name server a1-220.akam.net	193.108.91.0/24
23.211.133.65	Name server a6-65.akam.net	23.211.133.0/24
64.59.135.198	Name server ns8socg.shawcable.net	64.59.135.0/24
2.16.40.66	Name server a8-66.akam.net	2.16.40.0/24
96.7.49.64	Name server a3-64.akam.net	96.7.49.0/24
64.59.168.62	Name server ns9htok.shawcable.net	64.59.168.0/24
64.59.135.214	Name server ns7nocg.shawcable.net	64.59.135.0/24
184.85.248.67	Name server a9-67.akam.net	184.85.248.0/24
216.71.131.85	Mail server mx2.hc510-81.ca.iphmx.com	216.71.131.0/24
216.71.135.99	Mail server mx1.hc510-81.ca.iphmx.com	216.71.135.0/24

WHOIS of the domain sjrb.ca

Domain Name: sjrb.ca
Registry Domain ID: D58328-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: webnames.ca
Updated Date: 2026-08-21T15:02:52Z
Creation Date: 2000-12-27T18:57:28Z
Registry Expiry Date: 2026-12-27T05:00:00Z
Registrar: Webnames.ca Inc.
Registrar IANA ID: 456
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.8662217878
Registrar Abuse Contact Phone Ext:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: 113724332-CIRA
Registrant Name: Rogers Communications Canada Inc.
Registrant Organization: Rogers Communications Canada Inc.
Registrant Street: 333 Bloor Street East
Registrant City: Toronto
Registrant State/Province: ON
Registrant Postal Code: M4W1G9
Registrant Country: CA
Registrant Phone: +1.4169357938
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: [email protected]
Registry Admin ID: 113724333-CIRA
Admin Name: Rogers Communications Canada Inc.
Admin Organization: Rogers Communications Canada Inc.
Admin Street: 333 Bloor Street East
Admin City: Toronto
Admin State/Province: ON
Admin Postal Code: M4W1G9
Admin Country: CA
Admin Phone: +1.4169357938
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: [email protected]
Registry Tech ID: 113724334-CIRA
Tech Name: Rogers Communications Canada Inc.
Tech Organization: Rogers Communications Canada Inc.
Tech Street: 333 Bloor Street East
Tech City: Toronto
Tech State/Province: ON
Tech Postal Code: M4W1G9
Tech Country: CA
Tech Phone: +1.4169357938
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: [email protected]
Registry Billing ID:
Billing Name:
Billing Organization:
Billing Street:
Billing City:
Billing State/Province:
Billing Postal Code:
Billing Country:
Billing Phone:
Billing Phone Ext:
Billing Fax:
Billing Fax Ext:
Billing Email:
Name Server: a1-220.akam.net
Name Server: a3-64.akam.net
Name Server: a6-65.akam.net
Name Server: a8-66.akam.net
Name Server: a9-67.akam.net
Name Server: ns7nocg.shawcable.net
Name Server: ns8socg.shawcable.net
Name Server: ns9htok.shawcable.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-01T04:44:18Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

%
% Use of CIRA's WHOIS service is governed by the Terms of Use in its Legal
% Notice, available at https://www.cira.ca/en/resources/documents/about/website-terms-use
%
% (c) 2026 Canadian Internet Registration Authority, (http://www.cira.ca/)
Domain Name: sjrb.ca
Registry Domain ID: D58328-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: webnames.ca
Updated Date: 2026-08-21T15:02:52Z
Creation Date: 2000-12-27T18:57:28Z
Registry Expiry Date: 2026-12-27T05:00:00Z
Registrar: Webnames.ca Inc.
Registrar IANA ID: 456
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.8662217878
Registrar Abuse Contact Phone Ext:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: 113724332-CIRA
Registrant Name: Rogers Communications Canada Inc.
Registrant Organization: Rogers Communications Canada Inc.
Registrant Street: 333 Bloor Street East
Registrant City: Toronto
Registrant State/Province: ON
Registrant Postal Code: M4W1G9
Registrant Country: CA
Registrant Phone: +1.4169357938
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: [email protected]
Registry Admin ID: 113724333-CIRA
Admin Name: Rogers Communications Canada Inc.
Admin Organization: Rogers Communications Canada Inc.
Admin Street: 333 Bloor Street East
Admin City: Toronto
Admin State/Province: ON
Admin Postal Code: M4W1G9
Admin Country: CA
Admin Phone: +1.4169357938
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: [email protected]
Registry Tech ID: 113724334-CIRA
Tech Name: Rogers Communications Canada Inc.
Tech Organization: Rogers Communications Canada Inc.
Tech Street: 333 Bloor Street East
Tech City: Toronto
Tech State/Province: ON
Tech Postal Code: M4W1G9
Tech Country: CA
Tech Phone: +1.4169357938
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: [email protected]
Registry Billing ID:
Billing Name:
Billing Organization:
Billing Street:
Billing City:
Billing State/Province:
Billing Postal Code:
Billing Country:
Billing Phone:
Billing Phone Ext:
Billing Fax:
Billing Fax Ext:
Billing Email:
Name Server: a1-220.akam.net
Name Server: a3-64.akam.net
Name Server: a6-65.akam.net
Name Server: a8-66.akam.net
Name Server: a9-67.akam.net
Name Server: ns7nocg.shawcable.net
Name Server: ns8socg.shawcable.net
Name Server: ns9htok.shawcable.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-01T04:44:18Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

%
% Use of CIRA's WHOIS service is governed by the Terms of Use in its Legal
% Notice, available at https://www.cira.ca/en/resources/documents/about/website-terms-use
%
% (c) 2026 Canadian Internet Registration Authority, (http://www.cira.ca/)

% Query time: 686 msec
% WHEN: Thu Oct 01 04:44:17 UTC 2026