centurylink.net

Valid Email Server
Domain Lookup › centurylink.net

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
centurylink.net
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 18:04:01 UTC · ↺ Refresh

MX Hostnames

  • mx.centurylink.net

MX Priorities

  • mx.centurylink.net: 10

A / AAAA Records

  • 129.159.71.219 (no PTR)

Mail Server IPs

  • 34.226.24.72 ↩ ec2-34-226-24-72.compute-1.amazonaws.com
  • 35.167.34.51 ↩ ec2-35-167-34-51.us-west-2.compute.amazonaws.com
  • 44.237.12.42 ↩ ec2-44-237-12-42.us-west-2.compute.amazonaws.com
  • 54.88.152.217 ↩ ec2-54-88-152-217.compute-1.amazonaws.com

SOA Record

Raw SOA authns2.qwest.net abuse.aup.lumen.com 2260310000 300 300 604800 300
Primary NS (mname)
authns2.qwest.net
Admin Email (rname)
abuse@aup.lumen.com
Serial
2260310000
Refresh
300s
Retry
300s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

authns1.qwest.net
authns2.qwest.net

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:63.226.138.11 ip4:63.226.138.12 ip4:74.201.140.86 ip4:200.57.160.146/29 ip4:209.67.128.0/23 ip4:74.202.142.0/24 ip4:216.163.188.0/24 ip4:148.235.52.0/26 ip4:187.191.73.0/24 ip4:200.57.141.0/24 ip4:69.49.113.0/24 ip4:74.116.88.0/22 ip4:216.55.172.0/24 ip4:155.70.50.76 include:mail.zendesk.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

7 records
  • 7d3e0aab4d898d91
  • _gk1dw4ap6wv7wgt3t51z1o9dq5r183h
  • google-site-verification=3n43SpRSdZGJp4qL0tso0wnVbe5eIr69ojcj1bbQPwQ
  • _5fto7nnkz231iokhe6a9aeens29r4uk
  • _mug3odiqxy5fh5gzyrzu0ft0b8kmr32
  • google-site-verification=n-OI7kFdfIA1runIKPfELOphbcjqwHSq4UxHxq2A4ro
  • SPFv=spf1 mx ip4:63.226.138.11 ip4:63.226.138.12 ip4:74.201.140.86 ip4:200.57.160.146/29 ip4:209.67.128.0/23 ip4:74.202.142.0/24 ip4:216.163.188.0/24 ip4:148.235.52.0/26 ip4:187.191.73.0/24 ip4:200.57.141.0/24 ip4:69.49.113.0/24 ip4:74.116.88.0/22 ip4:216.55.172.0/24 ip4:155.70.50.76 include:mail.zendesk.com -all
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