Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
centra.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 19:25:00 UTC · ↺ Refresh
MX Hostnames
- centra-ca.mail.protection.outlook.com
MX Priorities
- centra-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 208.98.208.10 (no PTR)
Mail Server IPs
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
SOA Record
Raw SOA
ns21.domaincontrol.com dns.jomax.net 2026030500 28800 7200 604800 600
Primary NS (mname)
ns21.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns22.domaincontrol.com
ns21.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:_s00444908.autospf.email -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=10; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- MS=A90618EFDBA13B28BDB54A00BEA1B6F5CF7B4723
- hpj5372j2m0f93z5ksz435fvsbhk9bsc
- sophos-domain-verification=6b9d8403fa78fe0bc591fdb9c949633e3fb84115
- SPFv=spf1 include:_s00444908.autospf.email -all
- 6bkyd7w150t23h82bwsq3h56fj1wghr5
- google-site-verification=npzQNwIXK3hZSYRWvffBEXEXmRQm1xP8884ahVXZquQ
- atlassian-domain-verification=zESaEceeAsCX6OjQsIpkRGHRobwCHxX745QQuJaaiGU1TaVEqPu0LUXAkZ3cM3nn
- facebook-domain-verification=i4np72d2s50v1n82sjxumbvthsyknz
- atlassian-sending-domain-verification=c24eecef-eea7-4f40-b83f-06134dfd42e3
- sophos-domain-verification=66f55a6bc3e6da588cd9115725feaf17c6e642653e332c37f385b08f8e6c0ccd
- workplace-domain-verification=l8fy13EHQ9TVqIH3BFAWx4QORhJdXW
- _by0e63xoj1x1tva8n64jc6mup7j5nz0
- sophos-domain-verification=66f55a6bc3e6da588cd9115725feaf17c6e642653e332c37f385b08f8e6c0ccd
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for centra.ca
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits