Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thinkb.ca
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 23:22:57 UTC · ↺ Refresh
MX Hostnames
- thinkb.ca
MX Priorities
- thinkb.ca: 0
A / AAAA Records
- 67.43.226.3 ↩ srv15.swhc.ca
Mail Server IPs
- 67.43.226.3 ↩ srv15.swhc.ca
SOA Record
Raw SOA
ns1.whc.ca sysadmin-internal.whc.ca 2026020301 3600 1800 1209600 86400
Primary NS (mname)
ns1.whc.ca
Admin Email (rname)
sysadmin-internal@whc.ca
Serial
2026020301
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.whc.ca
ns3.whc.ca
ns2.whc.ca
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:68.168.124.130 include:spf.web-dns1.com ip4:72.10.170.194 +a +mx +ip4:67.43.226.2 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:68.168.124.130 include:spf.web-dns1.com ip4:72.10.170.194 +a +mx +ip4:67.43.226.2 ~all
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