gulko.com

Valid Email Server
Domain Lookup › gulko.com

Domain Overview

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

Checked via [email protected] · 2026-03-20 12:00:23 UTC · ↺ Refresh

MX Hostnames

  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx2.googlemail.com
  • aspmx.l.google.com
  • aspmx3.googlemail.com

MX Priorities

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

A / AAAA Records

  • 52.5.206.218 ↩ ec2-52-5-206-218.compute-1.amazonaws.com
  • 3.225.142.148
  • 3.220.225.62

Mail Server IPs

  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.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-536.awsdns-03.net
ns-1300.awsdns-34.org
ns-1635.awsdns-12.co.uk
ns-354.awsdns-44.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.google.com -all
📊 DNS lookups: 2/10
✓ 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

3 records
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.google.com -all
  • MS=ms32809452
  • google-site-verification=x5baKB0HhdJoA8ImVWhhTk-Hp2LaRX2LBMT-2y18cGE
Full email verification for gulko.com

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