mathros.com

Valid Email Server
Domain Lookup › mathros.com

Domain Overview

DNS: ✓ 8h ago Checker: ✓ 8h ago
mathros.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 13:36:12 UTC · ↺ Refresh

MX Hostnames

  • mail1.g21.pair.com

MX Priorities

  • mail1.g21.pair.com: 50

A / AAAA Records

  • 216.146.208.121 ↩ rockonion.com

Mail Server IPs

  • 216.146.195.69 ↩ mail1.g21.pair.com
  • 2607:f441::d892:c345 ↩ mail1.g21.pair.com

SOA Record

Raw SOA dns2.pair.com root.pair.com 2026040616 3600 300 604800 3600
Primary NS (mname)
dns2.pair.com
Admin Email (rname)
root@pair.com
Serial
2026040616
Refresh
3600s
Retry
300s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns0.ns0.com
dns2.pair.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:webmail.pair.com include:relay.pair.com include:pairlist.com a:www3.g21.pair.com a:mail1.g21.pair.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate 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

1 record
  • SPFv=spf1 include:webmail.pair.com include:relay.pair.com include:pairlist.com a:www3.g21.pair.com a:mail1.g21.pair.com ~all
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