tcns.com

Valid Email Server
Domain Lookup › tcns.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tcns.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 14:07:05 UTC · ↺ Refresh

MX Hostnames

  • mail.authserv.ca
  • mx.tcns.com
  • mail.tcns.com

MX Priorities

  • mail.tcns.com: 10
  • mx.tcns.com: 20
  • mail.authserv.ca: 5

A / AAAA Records

  • 72.51.8.118 ↩ mail.authserv.ca

Mail Server IPs

  • 72.51.8.118 ↩ mail.authserv.ca

SOA Record

Raw SOA ns2.tcns.com postmaster.tcns.com 2016061355 3600 600 604800 3600
Primary NS (mname)
ns2.tcns.com
Admin Email (rname)
postmaster@tcns.com
Serial
2016061355
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.tcns.com
ns4.tcns.com
ns2.tcns.com

SPF Record

✓ Strict (-all)
v=spf1 include:mail.authserv.ca include:mail.tcns.com include:mail.portanywhere.ca include:mail.portanywhere.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • DMARCv=DMARC1; p=none;
  • SPFv=spf1 include:mail.authserv.ca include:mail.tcns.com include:mail.portanywhere.ca include:mail.portanywhere.com -all
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