skybuilders.com

Valid Email Server
Domain Lookup › skybuilders.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
skybuilders.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 09:11:16 UTC · ↺ Refresh

MX Hostnames

  • ALT1.ASPMX.L.GOOGLE.com
  • ASPMX4.GOOGLEMAIL.com
  • ASPMX3.GOOGLEMAIL.com
  • ASPMX5.GOOGLEMAIL.com
  • ASPMX.L.GOOGLE.com
  • ALT2.ASPMX.L.GOOGLE.com
  • ASPMX2.GOOGLEMAIL.com

MX Priorities

  • alt1.aspmx.l.google.com: 5
  • aspmx2.googlemail.com: 10
  • aspmx4.googlemail.com: 10
  • aspmx.l.google.com: 1
  • aspmx3.googlemail.com: 10
  • aspmx5.googlemail.com: 10
  • alt2.aspmx.l.google.com: 5

A / AAAA Records

  • 45.79.150.213 ↩ skyline7.skybuilders.com

Mail Server IPs

  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 142.251.167.27 ↩ ww-in-f27.1e100.net
  • 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net

SOA Record

Raw SOA ns1.skybuilders.com bobdoyle.skybuilders.com 3490 3600 7200 604800 86400
Primary NS (mname)
ns1.skybuilders.com
Admin Email (rname)
bobdoyle@skybuilders.com
Serial
3490
Refresh
3600s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns6.skybuilders.com
ns5.skybuilders.com
ns1.skybuilders.com
ns3.skybuilders.com
ns4.skybuilders.com
ns2.skybuilders.com

SPF Record

✓ Strict (-all)
v=spf1 a mx include:aspmx.googlemail.com include:aspmx.sailthru.com ip4:45.79.150.213 ip6:2600:3c03::f03c:94ff:fe0a:18c1 ip6:2600:3c03::f03c:92ff:fe25:da28 -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

1 record
  • SPFv=spf1 a mx include:aspmx.googlemail.com include:aspmx.sailthru.com ip4:45.79.150.213 ip6:2600:3c03::f03c:94ff:fe0a:18c1 ip6:2600:3c03::f03c:92ff:fe25:da28 -all
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