crammerinc.com

Valid Email Server
Domain Lookup › crammerinc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
crammerinc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 02:20:54 UTC · ↺ Refresh

MX Hostnames

  • smtp.secureserver.net
  • mailstore1.secureserver.net

MX Priorities

  • smtp.secureserver.net: 10
  • mailstore1.secureserver.net: 20

A / AAAA Records

  • 3.225.142.148 ↩ ec2-3-225-142-148.compute-1.amazonaws.com
  • 52.5.206.218 ↩ ec2-52-5-206-218.compute-1.amazonaws.com
  • 3.220.225.62 ↩ ec2-3-220-225-62.compute-1.amazonaws.com

Mail Server IPs

  • 216.69.141.113 ↩ osplibsmtp03-v01.prod.phx3.secureserver.net
  • 216.69.141.84 ↩ osplibsmtp02-v01.prod.phx3.secureserver.net
  • 216.69.141.71 ↩ osplibsmtp01-v01.prod.phx3.secureserver.net
  • 216.69.141.114 ↩ osplibsmtp03-v02.prod.phx3.secureserver.net
  • 216.69.141.162 ↩ osplibsmtp02-v02.prod.phx3.secureserver.net
  • 216.69.141.78 ↩ osplibsmtp01-v02.prod.phx3.secureserver.net

SOA Record

Raw SOA ns-1300.awsdns-34.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1300.awsdns-34.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-354.awsdns-44.com
ns-536.awsdns-03.net
ns-1300.awsdns-34.org
ns-1635.awsdns-12.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 include:secureserver.net include:_spf.mail.yahoo.com ~all
📊 DNS lookups: 2/10
~ 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

2 records
  • D8750186
  • SPFv=spf1 include:secureserver.net include:_spf.mail.yahoo.com ~all
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